Climeworks which launched in 2009 is among around 140 direct air capture companies globally but is one of the most high-profile and best funded. трипскан In 2021 it opened its Orca plant in Iceland followed in 2024 by a second called Mammoth. These facilities suck in air and extract carbon using chemicals in a process powered by clean geothermal energy. The carbon can then be reused or injected deep underground where it will be naturally transformed into stone locking it up permanently. Climeworks makes its money by selling credits to companies to offset their own climate pollution. The appeal of direct air capture is clear; to keep global warming from rising to even more catastrophic levels means drastically cutting back on planet-heating fossil fuels. But many scientists say the world will also need to remove some of the carbon pollution already in the atmosphere. This can be done naturally for example through tree planting or with technology like direct air capture. https://tripscan.biz tripscan top The advantage of direct air capture is that carbon is removed from the air immediately and “can be measured directly and accurately” said Howard Herzog senior research engineer at the MIT Energy Initiative. But there are big challenges he told CNN. The concentration of carbon dioxide in the atmosphere has been shooting upward but still only makes up about 0.04. Herzog compares removing carbon directly from the air to needing to find 10 red marbles in a jar of 25000 marbles of which 24990 are blue. This makes the process energy-intensive and expensive. The technology also takes time to scale. Climeworks hasn’t come anywhere close to the full capacity of its plants. Orca can remove a maximum of 4000 tons of carbon a year but it has never captured more than 1700 tons in a year since it opened in 2021. The company says single months have seen a capture rate much closer to the maximum. The company’s Mammoth plant has a maximum capacity of 36000 tons a year but since it opened last year it has removed a total of 805 tons a figure which goes down to 121 tons when taking into account the carbon produced building and running the plants.
“Generally if people were more informed about the average tripscan top environmental cost of generating a response people would maybe start thinking ‘Is it really necessary to turn myself into an action figure just because I’m bored?’ Or ‘do I have to tell ChatGPT jokes because I have nothing to do?’” Dauner said. Additionally as more companies push to add generative AI tools to their systems people may not have much choice how or when they use the technology Luccioni said. “We don’t need generative AI in web search. Nobody asked for AI chatbots in messaging apps or on social media” Luccioni said. “This race to stuff them into every single existing technology is truly infuriating since it comes with real consequences to our planet.” https://tripscan.biz tripscan войти With less available information about AI’s resource usage consumers have less choice Ren said adding that regulatory pressures for more transparency are unlikely to the United States anytime soon. Instead the best hope for more energy-efficient AI may lie in the cost efficacy of using less energy. “Overall I’m still positive about the future. There are many software engineers working hard to improve resource efficiency” Ren said. “Other industries consume a lot of energy too but it’s not a reason to suggest AI’s environmental impact is not a problem. We should definitely pay attention.” Sign up for CNN’s Life But Greener newsletter. Our limited newsletter series guides you on how to minimize your personal role in the climate crisis — and reduce your eco-anxiety.
‘Extraordinary rainstorm’ floods Nebraska city triggers water rescues трипскан вход An entire June’s worth of rain fell in just a few hours over Grand Island Nebraska Wednesday night triggering life-threatening flash flooding that inundated neighborhoods stranded motorists and forced water rescues. Crews have responded to dozens of calls to assist motorists stuck in flooded roads since torrential rain began Wednesday night according to Spencer Schubert the city’s communications manager. The flooding has also displaced an unspecified number of residents from their homes. https://tripscan.biz трипскан сайт “At this time we have no injuries to report” Schubert said early Thursday morning noting some rescues were ongoing. Torrential rain caused sewers to back up into several homes and sent floodwater running into basements according to a Thursday news release from the city. Some affected residents took shelter at local hotels or with friends and family. “This was an extraordinary rainstorm and is very similar to the historic rains seen in the 2005 floods” Jon Rosenlund the city’s emergency director said. “We will be actively monitoring rivers creeks and other drainage areas over the next few days for future flooding issues.” Flooding in 2005 turned streets into rivers in Grand Island. At one point the city tore up a major road to open up a channel to drain flooding away from homes CNN affiliate KHGI reported. The central Nebraskan city is home to around 53000 people and is about 130 miles southwest of Omaha. The rain came to an end around sunrise Thursday but the danger remains with a flood warning in effect until 7 p.m. CDT.
‘Like wildfires underwater’: Worst summer on record for Great Barrier Reef as coral die-off sweeps planet tripscan Great Barrier Reef Australia CNN — As the early-morning sun rises over the Great Barrier Reef its light pierces the turquoise waters of a shallow lagoon bringing more than a dozen turtles to life. These waters that surround Lady Elliot Island off the eastern coast of Australia provide some of the most spectacular snorkeling in the world — but they are also on the front line of the climate crisis as one of the first places to suffer a mass coral bleaching event that has now spread across the world. https://tripscan.biz tripscan top The Great Barrier Reef just experienced its worst summer on record and the US-based National Oceanic and Atmospheric Administration NOAA announced last month that the world is undergoing a rare global mass coral bleaching event — the fourth since the late 1990s — impacting at least 53 countries. The corals are casualties of surging global temperatures which have smashed historical records in the past year — caused mainly by fossil fuels driving up carbon emissions and accelerated by the El Nino weather pattern which heats ocean temperatures in this part of the world. CNN witnessed bleaching on the Great Barrier Reef in mid-February on five different reefs spanning the northern and southern parts of the 2300-kilometer 1400-mile ecosystem. “What is happening now in our oceans is like wildfires underwater” said Kate Quigley principal research scientist at Australia’s Minderoo Foundation. “We’re going to have so much warming that we’re going to get to a tipping point and we won’t be able to come back from that.” Coral bleached white from high water temperatures on the Great Barrier Reef Australia. CNN Bleaching occurs when marine heatwaves put corals under stress causing them to expel algae from their tissue draining their color. Corals can recover from bleaching if the temperatures return to normal but they will perish if the water stays warmer than usual. “It’s a die-off” said Professor Ove Hoegh-Guldberg a climate scientist at the University of Queensland in Australia and chief scientist at The Great Barrier Reef Foundation. “The temperatures got so warm they’re off the charts … they never occurred before at this sort of level.” The destruction of marine ecosystems would deliver an effective death sentence for around a quarter of all species that depend on reefs for survival — and threaten an estimated billion people who rely on reef fish for their food and livelihoods. Reefs also provide vital protection for coastlines reducing the impact of floods cyclones and sea level rise. “Humanity is being threatened at a rate by which I’m not sure we really understand” Hoegh-Guldberg said.
These preppers have ‘go bags’ guns and a fear of global disaster. They’re also left-wing трипскан вход This fear is where Marlon Smith’s interest in preparedness began. Growing up in Trinidad he lived through an attempted coup in 1990 that sparked his concern the government would not be there in times of disaster. This only deepened after he moved to New York City and watched the aftermath of 9/11 and then Hurricane Katrina. “You see the inability of the government to truly help their citizens” he said. Smith who now lives in New Jersey runs a fashion company by day and spends his weekends teaching survival skills — including how to survive nuclear fallout. “People find it funny that I work in women’s evening wear and yet I do this hardcore prepping and survivalism in the woods” he said. https://tripscan.biz tripskan It’s hard to pin down the exact number of preppers in the US. Mills says 5 million is a reasonable estimate; others would say much higher. Chris Ellis a military officer and academic who researches disaster preparedness puts the figure at around 20 to 23 million using data from FEMA household surveys. Figuring out the proportion of preppers on the left is perhaps even trickier. Mills who has surveyed 2500 preppers over the past decade has consistently found about 80 identify as conservatives libertarians or another right-wing ideology. He doesn’t see any dramatic upswing in left-wing preppers. necdotal evidence however points to increased interest from this side of the political spectrum. Several left-wing preppers told CNN about the burgeoning popularity of their newsletters social media channels and prepping courses. Shonkwiler says subscriber numbers to his newsletter When/If increase exponentially whenever right-wing views make headlines especially elections. He saw a huge uptick when Trump was reelected. Smith has noticed more liberals among his growing client roster for prepping courses. He has an upcoming session teaching a group in the Hamptons — “all Democrats” he said. Smith is at pains to keep politics out of prepping however and makes his clients sign a waiver agreeing not to talk about it. “You leave your politics and your religion at the door. … You come here to learn; I’ll teach you” he said.
“It’s true that both plants are not yet operating at the capacity we originally targeted” said the Climeworks spokesperson. tripskan “Like all transformative innovations progress is iterative and some steps may take longer than anticipated” they said. The company’s prospective third plant in Louisiana aims to remove 1 million tons of carbon a year by 2030 but it’s uncertain whether construction will proceed under the Trump administration. A Department of Energy spokesperson said a department-wide review was underway “to ensure all activities follow the law comply with applicable court orders and align with the Trump administration’s priorities.” The government has a mandate “to unleash ‘American Energy Dominance’” they added. Direct air capture’s success will also depend on companies’ willingness to buy carbon credits. https://tripscan.biz трипскан Currently companies are pretty free to “use the atmosphere as a waste dump” said Holly Buck assistant professor of environment and sustainability at the University at Buffalo. “This lack of regulation means there is not yet a strong business case for cleaning this waste up” she told CNN. Another criticism leveled at Climeworks is its failure to offset its own climate pollution. The carbon produced by its corporate activities such as office space and travel outweighs the carbon removed by its plants. The company says its plants already remove more carbon than they produce and corporate emissions “will become irrelevant as the size of our plants scales up.” Some however believe the challenges Climeworks face tell a broader story about direct air capture. This should be a “wake-up call” said Lili Fuhr director of the fossil economy program at the Center for International Environmental Law. Climeworks’ problems are not “outliers” she told CNN “but reflect persistent technical and economic hurdles faced by the direct air capture industry worldwide.” “The climate crisis demands real action not speculative tech that overpromises and underdelivers.” she added. Some of the Climeworks’ problems are “related to normal first-of-a-kind scaling challenges with emerging complex engineering projects” Buck said. But the technology has a steep path to becoming cheaper and more efficient especially with US slashing funding for climate policies she added. “This kind of policy instability and backtracking on contracts will be terrible for a range of technologies and innovations not just direct air capture.” Direct air capture is definitely feasible but its hard said MIT’s Buck. Whether it succeeds will depend on a slew of factors including technological improvements and creating markets for carbon removals he said. “At this point in time no one really knows how large a role direct air capture will play in the future.”
You’re so interesting! I don’t think I’ve truly read through a single
thing like that before. So wonderful to find another
person with a few original thoughts on this issue. Really..
many thanks for starting this up. This site is something that is required on the web,
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The CO2 that is extracted from the water is run through a purification process that uses activated carbon in the form of charred coconut husks and is then ready to be stored. tripskan In a scaled up system it would be fed into geological CO2 storage. Before the water is released its acidity is restored to normal levels making it ready to absorb more carbon dioxide from the air. “This discharged water that now has very low carbon concentrations needs to refill it so it’s just trying to suck CO2 from anywhere and it sucks it from the atmosphere” says Halloran. “A simple analogy is that we’re squeezing out a sponge and putting it back.” While more tests are needed to understand the full potential of the technology Halloran admits that it doesn’t “blow direct air capture out the water in terms of the energy costs” and there are other challenges such as having to remove impurities from the water before releasing it as well as the potential impact on ecosystems. But he adds all carbon capture technologies incur high costs in building plants and infrastructure and using seawater has one clear advantage: It has a much higher concentration of carbon than air does “so you should be able to really reduce the capital costs involved in building the plants.” https://tripscan.biz tripscan top Mitigating impacts One major concern with any system that captures carbon from seawater is the impact of the discharged water on marine ecosystems. Guy Hooper a PhD researcher at the University of Exeter who’s working on this issue at the SeaCURE site says that low-carbon seawater is released in such small quantities that it is unlikely to have any effect on the marine environment because it dilutes extremely quickly. However that doesn’t mean that SeaCURE is automatically safe. “To understand how a scaled-up version of SeaCURE might affect the marine environment we have been conducting experiments to measure how marine organisms respond to low-carbon seawater” he adds. “Initial results suggest that some marine organisms such as plankton and mussels may be affected when exposed to low-carbon seawater.” To mitigate potential impacts the seawater can be “pre-diluted” before releasing it into the marine environment but Hooper warns that a SeaCURE system should not be deployed near any sensitive marine habitats. There is rising interest in carbon capture from seawater — also known as Direct Ocean Capture or DOC — and several startups are operating in the field. Among them is Captura a spin off from the California Institute of Technology that is working on a pilot project in Hawaii and Amsterdam-based Brineworks which says that its method is more cost-effective than air carbon capture. According to Stuart Haszeldine a professor of Carbon Capture and Storage at the University of Edinburgh who’s not involved with SeaCURE although the initiative appears to be more energy efficient than current air capture pilot tests a full-scale system will require a supply of renewable energy and permanent storage of CO2 by compressing it to become a liquid and then injecting it into porous rocks deep underground. He says the next challenge is for SeaCURE to scale up and “to operate for longer to prove it can capture millions of tons of CO2 each year.” But he believes there is huge potential in recapturing carbon from ocean water. “Total carbon in seawater is about 50 times that in the atmosphere and carbon can be resident in seawater for tens of thousands of years causing acidification which damages the plankton and coral reef ecosystems. Removing carbon from the ocean is a giant task but essential if the consequences of climate change are to be controlled” he says.
Study reveals how much energy AI uses to answer your questions трип скан Whether it’s answering work emails or drafting wedding vows generative artificial intelligence tools have become a trusty copilot in many people’s lives. But a growing body of research shows that for every problem AI solves hidden environmental costs are racking up. Each word in an AI prompt is broken down into clusters of numbers called “token IDs” and sent to massive data centers — some larger than football fields — powered by coal or natural gas plants. There stacks of large computers generate responses through dozens of rapid calculations. The whole process can take up to 10 times more energy to complete than a regular Google search according to a frequently cited estimation by the Electric Power Research Institute. https://tripscan.biz трипскан сайт So for each prompt you give AI what’s the damage? To find out researchers in Germany tested 14 large language model LLM AI systems by asking them both free-response and multiple-choice questions. Complex questions produced up to six times more carbon dioxide emissions than questions with concise answers. In addition “smarter” LLMs with more reasoning abilities produced up to 50 times more carbon emissions than simpler systems to answer the same question the study reported. “This shows us the tradeoff between energy consumption and the accuracy of model performance” said Maximilian Dauner a doctoral student at Hochschule Munchen University of Applied Sciences and first author of the Frontiers in Communication study published Wednesday. Typically these smarter more energy intensive LLMs have tens of billions more parameters — the biases used for processing token IDs — than smaller more concise models. “You can think of it like a neural network in the brain. The more neuron connections the more thinking you can do to answer a question” Dauner said. What you can do to reduce your carbon footprint Complex questions require more energy in part because of the lengthy explanations many AI models are trained to provide Dauner said. If you ask an AI chatbot to solve an algebra question for you it may take you through the steps it took to find the answer he said.
This company says its technology can help save the world. It’s now cutting 20% of its staff as Trump slashes climate funding
[url=https://trip-scan.top]tripskan[/url]
Two huge plants in Iceland operate like giant vacuum cleaners, sucking in air and stripping out planet-heating carbon pollution. This much-hyped climate technology is called direct air capture, and the company behind these plants, Switzerland-based Climeworks, is perhaps its most high-profile proponent.
But a year after opening a huge new facility, Climeworks is straining against strong headwinds. The company announced this month it would lay off around 20% of its workforce, blaming economic uncertainties and shifting climate policy priorities. https://trip-scan.top
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“We’ve always known this journey would be demanding. Today, we find ourselves navigating a challenging time,” Climeworks’ CEOs Christoph Gebald and Jan Wurzbacher said in a statement.
This is particularly true of its US ambitions. A new direct air capture plant planned for Louisiana, which received $50 million in funding from the Biden administration, hangs in the balance as President Donald Trump slashes climate funding.
Climeworks also faces mounting criticism for operating at only a fraction of its maximum capacity, and for failing to remove more climate pollution than it emits.
The company says these are teething pains inherent in setting up a new industry from scratch and that it has entered a new phase of global scale up. “The overall trajectory will be positive as we continue to define the technology,” said a Climeworks spokesperson.
For critics, however, these headwinds are evidence direct air capture is an expensive, shiny distraction from effective climate action.
Climeworks which launched in 2009 is among around 140 direct air capture companies globally but is one of the most high-profile and best funded. трипскан In 2021 it opened its Orca plant in Iceland followed in 2024 by a second called Mammoth. These facilities suck in air and extract carbon using chemicals in a process powered by clean geothermal energy. The carbon can then be reused or injected deep underground where it will be naturally transformed into stone locking it up permanently. Climeworks makes its money by selling credits to companies to offset their own climate pollution. The appeal of direct air capture is clear; to keep global warming from rising to even more catastrophic levels means drastically cutting back on planet-heating fossil fuels. But many scientists say the world will also need to remove some of the carbon pollution already in the atmosphere. This can be done naturally for example through tree planting or with technology like direct air capture. https://tripscan.biz tripscan top The advantage of direct air capture is that carbon is removed from the air immediately and “can be measured directly and accurately” said Howard Herzog senior research engineer at the MIT Energy Initiative. But there are big challenges he told CNN. The concentration of carbon dioxide in the atmosphere has been shooting upward but still only makes up about 0.04. Herzog compares removing carbon directly from the air to needing to find 10 red marbles in a jar of 25000 marbles of which 24990 are blue. This makes the process energy-intensive and expensive. The technology also takes time to scale. Climeworks hasn’t come anywhere close to the full capacity of its plants. Orca can remove a maximum of 4000 tons of carbon a year but it has never captured more than 1700 tons in a year since it opened in 2021. The company says single months have seen a capture rate much closer to the maximum. The company’s Mammoth plant has a maximum capacity of 36000 tons a year but since it opened last year it has removed a total of 805 tons a figure which goes down to 121 tons when taking into account the carbon produced building and running the plants.
“Generally if people were more informed about the average tripscan top environmental cost of generating a response people would maybe start thinking ‘Is it really necessary to turn myself into an action figure just because I’m bored?’ Or ‘do I have to tell ChatGPT jokes because I have nothing to do?’” Dauner said. Additionally as more companies push to add generative AI tools to their systems people may not have much choice how or when they use the technology Luccioni said. “We don’t need generative AI in web search. Nobody asked for AI chatbots in messaging apps or on social media” Luccioni said. “This race to stuff them into every single existing technology is truly infuriating since it comes with real consequences to our planet.” https://tripscan.biz tripscan войти With less available information about AI’s resource usage consumers have less choice Ren said adding that regulatory pressures for more transparency are unlikely to the United States anytime soon. Instead the best hope for more energy-efficient AI may lie in the cost efficacy of using less energy. “Overall I’m still positive about the future. There are many software engineers working hard to improve resource efficiency” Ren said. “Other industries consume a lot of energy too but it’s not a reason to suggest AI’s environmental impact is not a problem. We should definitely pay attention.” Sign up for CNN’s Life But Greener newsletter. Our limited newsletter series guides you on how to minimize your personal role in the climate crisis — and reduce your eco-anxiety.
‘Extraordinary rainstorm’ floods Nebraska city triggers water rescues трипскан вход An entire June’s worth of rain fell in just a few hours over Grand Island Nebraska Wednesday night triggering life-threatening flash flooding that inundated neighborhoods stranded motorists and forced water rescues. Crews have responded to dozens of calls to assist motorists stuck in flooded roads since torrential rain began Wednesday night according to Spencer Schubert the city’s communications manager. The flooding has also displaced an unspecified number of residents from their homes. https://tripscan.biz трипскан сайт “At this time we have no injuries to report” Schubert said early Thursday morning noting some rescues were ongoing. Torrential rain caused sewers to back up into several homes and sent floodwater running into basements according to a Thursday news release from the city. Some affected residents took shelter at local hotels or with friends and family. “This was an extraordinary rainstorm and is very similar to the historic rains seen in the 2005 floods” Jon Rosenlund the city’s emergency director said. “We will be actively monitoring rivers creeks and other drainage areas over the next few days for future flooding issues.” Flooding in 2005 turned streets into rivers in Grand Island. At one point the city tore up a major road to open up a channel to drain flooding away from homes CNN affiliate KHGI reported. The central Nebraskan city is home to around 53000 people and is about 130 miles southwest of Omaha. The rain came to an end around sunrise Thursday but the danger remains with a flood warning in effect until 7 p.m. CDT.
‘Like wildfires underwater’: Worst summer on record for Great Barrier Reef as coral die-off sweeps planet tripscan Great Barrier Reef Australia CNN — As the early-morning sun rises over the Great Barrier Reef its light pierces the turquoise waters of a shallow lagoon bringing more than a dozen turtles to life. These waters that surround Lady Elliot Island off the eastern coast of Australia provide some of the most spectacular snorkeling in the world — but they are also on the front line of the climate crisis as one of the first places to suffer a mass coral bleaching event that has now spread across the world. https://tripscan.biz tripscan top The Great Barrier Reef just experienced its worst summer on record and the US-based National Oceanic and Atmospheric Administration NOAA announced last month that the world is undergoing a rare global mass coral bleaching event — the fourth since the late 1990s — impacting at least 53 countries. The corals are casualties of surging global temperatures which have smashed historical records in the past year — caused mainly by fossil fuels driving up carbon emissions and accelerated by the El Nino weather pattern which heats ocean temperatures in this part of the world. CNN witnessed bleaching on the Great Barrier Reef in mid-February on five different reefs spanning the northern and southern parts of the 2300-kilometer 1400-mile ecosystem. “What is happening now in our oceans is like wildfires underwater” said Kate Quigley principal research scientist at Australia’s Minderoo Foundation. “We’re going to have so much warming that we’re going to get to a tipping point and we won’t be able to come back from that.” Coral bleached white from high water temperatures on the Great Barrier Reef Australia. CNN Bleaching occurs when marine heatwaves put corals under stress causing them to expel algae from their tissue draining their color. Corals can recover from bleaching if the temperatures return to normal but they will perish if the water stays warmer than usual. “It’s a die-off” said Professor Ove Hoegh-Guldberg a climate scientist at the University of Queensland in Australia and chief scientist at The Great Barrier Reef Foundation. “The temperatures got so warm they’re off the charts … they never occurred before at this sort of level.” The destruction of marine ecosystems would deliver an effective death sentence for around a quarter of all species that depend on reefs for survival — and threaten an estimated billion people who rely on reef fish for their food and livelihoods. Reefs also provide vital protection for coastlines reducing the impact of floods cyclones and sea level rise. “Humanity is being threatened at a rate by which I’m not sure we really understand” Hoegh-Guldberg said.
These preppers have ‘go bags’ guns and a fear of global disaster. They’re also left-wing трипскан вход This fear is where Marlon Smith’s interest in preparedness began. Growing up in Trinidad he lived through an attempted coup in 1990 that sparked his concern the government would not be there in times of disaster. This only deepened after he moved to New York City and watched the aftermath of 9/11 and then Hurricane Katrina. “You see the inability of the government to truly help their citizens” he said. Smith who now lives in New Jersey runs a fashion company by day and spends his weekends teaching survival skills — including how to survive nuclear fallout. “People find it funny that I work in women’s evening wear and yet I do this hardcore prepping and survivalism in the woods” he said. https://tripscan.biz tripskan It’s hard to pin down the exact number of preppers in the US. Mills says 5 million is a reasonable estimate; others would say much higher. Chris Ellis a military officer and academic who researches disaster preparedness puts the figure at around 20 to 23 million using data from FEMA household surveys. Figuring out the proportion of preppers on the left is perhaps even trickier. Mills who has surveyed 2500 preppers over the past decade has consistently found about 80 identify as conservatives libertarians or another right-wing ideology. He doesn’t see any dramatic upswing in left-wing preppers. necdotal evidence however points to increased interest from this side of the political spectrum. Several left-wing preppers told CNN about the burgeoning popularity of their newsletters social media channels and prepping courses. Shonkwiler says subscriber numbers to his newsletter When/If increase exponentially whenever right-wing views make headlines especially elections. He saw a huge uptick when Trump was reelected. Smith has noticed more liberals among his growing client roster for prepping courses. He has an upcoming session teaching a group in the Hamptons — “all Democrats” he said. Smith is at pains to keep politics out of prepping however and makes his clients sign a waiver agreeing not to talk about it. “You leave your politics and your religion at the door. … You come here to learn; I’ll teach you” he said.
“It’s true that both plants are not yet operating at the capacity we originally targeted” said the Climeworks spokesperson. tripskan “Like all transformative innovations progress is iterative and some steps may take longer than anticipated” they said. The company’s prospective third plant in Louisiana aims to remove 1 million tons of carbon a year by 2030 but it’s uncertain whether construction will proceed under the Trump administration. A Department of Energy spokesperson said a department-wide review was underway “to ensure all activities follow the law comply with applicable court orders and align with the Trump administration’s priorities.” The government has a mandate “to unleash ‘American Energy Dominance’” they added. Direct air capture’s success will also depend on companies’ willingness to buy carbon credits. https://tripscan.biz трипскан Currently companies are pretty free to “use the atmosphere as a waste dump” said Holly Buck assistant professor of environment and sustainability at the University at Buffalo. “This lack of regulation means there is not yet a strong business case for cleaning this waste up” she told CNN. Another criticism leveled at Climeworks is its failure to offset its own climate pollution. The carbon produced by its corporate activities such as office space and travel outweighs the carbon removed by its plants. The company says its plants already remove more carbon than they produce and corporate emissions “will become irrelevant as the size of our plants scales up.” Some however believe the challenges Climeworks face tell a broader story about direct air capture. This should be a “wake-up call” said Lili Fuhr director of the fossil economy program at the Center for International Environmental Law. Climeworks’ problems are not “outliers” she told CNN “but reflect persistent technical and economic hurdles faced by the direct air capture industry worldwide.” “The climate crisis demands real action not speculative tech that overpromises and underdelivers.” she added. Some of the Climeworks’ problems are “related to normal first-of-a-kind scaling challenges with emerging complex engineering projects” Buck said. But the technology has a steep path to becoming cheaper and more efficient especially with US slashing funding for climate policies she added. “This kind of policy instability and backtracking on contracts will be terrible for a range of technologies and innovations not just direct air capture.” Direct air capture is definitely feasible but its hard said MIT’s Buck. Whether it succeeds will depend on a slew of factors including technological improvements and creating markets for carbon removals he said. “At this point in time no one really knows how large a role direct air capture will play in the future.”
You’re so interesting! I don’t think I’ve truly read through a single
thing like that before. So wonderful to find another
person with a few original thoughts on this issue. Really..
many thanks for starting this up. This site is something that is required on the web,
someone with some originality!
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The CO2 that is extracted from the water is run through a purification process that uses activated carbon in the form of charred coconut husks and is then ready to be stored. tripskan In a scaled up system it would be fed into geological CO2 storage. Before the water is released its acidity is restored to normal levels making it ready to absorb more carbon dioxide from the air. “This discharged water that now has very low carbon concentrations needs to refill it so it’s just trying to suck CO2 from anywhere and it sucks it from the atmosphere” says Halloran. “A simple analogy is that we’re squeezing out a sponge and putting it back.” While more tests are needed to understand the full potential of the technology Halloran admits that it doesn’t “blow direct air capture out the water in terms of the energy costs” and there are other challenges such as having to remove impurities from the water before releasing it as well as the potential impact on ecosystems. But he adds all carbon capture technologies incur high costs in building plants and infrastructure and using seawater has one clear advantage: It has a much higher concentration of carbon than air does “so you should be able to really reduce the capital costs involved in building the plants.” https://tripscan.biz tripscan top Mitigating impacts One major concern with any system that captures carbon from seawater is the impact of the discharged water on marine ecosystems. Guy Hooper a PhD researcher at the University of Exeter who’s working on this issue at the SeaCURE site says that low-carbon seawater is released in such small quantities that it is unlikely to have any effect on the marine environment because it dilutes extremely quickly. However that doesn’t mean that SeaCURE is automatically safe. “To understand how a scaled-up version of SeaCURE might affect the marine environment we have been conducting experiments to measure how marine organisms respond to low-carbon seawater” he adds. “Initial results suggest that some marine organisms such as plankton and mussels may be affected when exposed to low-carbon seawater.” To mitigate potential impacts the seawater can be “pre-diluted” before releasing it into the marine environment but Hooper warns that a SeaCURE system should not be deployed near any sensitive marine habitats. There is rising interest in carbon capture from seawater — also known as Direct Ocean Capture or DOC — and several startups are operating in the field. Among them is Captura a spin off from the California Institute of Technology that is working on a pilot project in Hawaii and Amsterdam-based Brineworks which says that its method is more cost-effective than air carbon capture. According to Stuart Haszeldine a professor of Carbon Capture and Storage at the University of Edinburgh who’s not involved with SeaCURE although the initiative appears to be more energy efficient than current air capture pilot tests a full-scale system will require a supply of renewable energy and permanent storage of CO2 by compressing it to become a liquid and then injecting it into porous rocks deep underground. He says the next challenge is for SeaCURE to scale up and “to operate for longer to prove it can capture millions of tons of CO2 each year.” But he believes there is huge potential in recapturing carbon from ocean water. “Total carbon in seawater is about 50 times that in the atmosphere and carbon can be resident in seawater for tens of thousands of years causing acidification which damages the plankton and coral reef ecosystems. Removing carbon from the ocean is a giant task but essential if the consequences of climate change are to be controlled” he says.
Study reveals how much energy AI uses to answer your questions трип скан Whether it’s answering work emails or drafting wedding vows generative artificial intelligence tools have become a trusty copilot in many people’s lives. But a growing body of research shows that for every problem AI solves hidden environmental costs are racking up. Each word in an AI prompt is broken down into clusters of numbers called “token IDs” and sent to massive data centers — some larger than football fields — powered by coal or natural gas plants. There stacks of large computers generate responses through dozens of rapid calculations. The whole process can take up to 10 times more energy to complete than a regular Google search according to a frequently cited estimation by the Electric Power Research Institute. https://tripscan.biz трипскан сайт So for each prompt you give AI what’s the damage? To find out researchers in Germany tested 14 large language model LLM AI systems by asking them both free-response and multiple-choice questions. Complex questions produced up to six times more carbon dioxide emissions than questions with concise answers. In addition “smarter” LLMs with more reasoning abilities produced up to 50 times more carbon emissions than simpler systems to answer the same question the study reported. “This shows us the tradeoff between energy consumption and the accuracy of model performance” said Maximilian Dauner a doctoral student at Hochschule Munchen University of Applied Sciences and first author of the Frontiers in Communication study published Wednesday. Typically these smarter more energy intensive LLMs have tens of billions more parameters — the biases used for processing token IDs — than smaller more concise models. “You can think of it like a neural network in the brain. The more neuron connections the more thinking you can do to answer a question” Dauner said. What you can do to reduce your carbon footprint Complex questions require more energy in part because of the lengthy explanations many AI models are trained to provide Dauner said. If you ask an AI chatbot to solve an algebra question for you it may take you through the steps it took to find the answer he said.
This company says its technology can help save the world. It’s now cutting 20% of its staff as Trump slashes climate funding
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Two huge plants in Iceland operate like giant vacuum cleaners, sucking in air and stripping out planet-heating carbon pollution. This much-hyped climate technology is called direct air capture, and the company behind these plants, Switzerland-based Climeworks, is perhaps its most high-profile proponent.
But a year after opening a huge new facility, Climeworks is straining against strong headwinds. The company announced this month it would lay off around 20% of its workforce, blaming economic uncertainties and shifting climate policy priorities.
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“We’ve always known this journey would be demanding. Today, we find ourselves navigating a challenging time,” Climeworks’ CEOs Christoph Gebald and Jan Wurzbacher said in a statement.
This is particularly true of its US ambitions. A new direct air capture plant planned for Louisiana, which received $50 million in funding from the Biden administration, hangs in the balance as President Donald Trump slashes climate funding.
Climeworks also faces mounting criticism for operating at only a fraction of its maximum capacity, and for failing to remove more climate pollution than it emits.
The company says these are teething pains inherent in setting up a new industry from scratch and that it has entered a new phase of global scale up. “The overall trajectory will be positive as we continue to define the technology,” said a Climeworks spokesperson.
For critics, however, these headwinds are evidence direct air capture is an expensive, shiny distraction from effective climate action.