Direct Air Carbon Capture
Technologies that pull carbon dioxide directly out of ambient air will be required if humanity is to get its CO2 emissions down to zero. Direct air capture will be a useful last resort to offset CO2 emissions that are impossible, impractical or too expensive to eliminate or capture at their source.
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Stanford researchers have found a way to activate commonly found rocks so they capture CO2 out of the air at room temperature. The team believes it could be relatively inexpensive, and can easily scale to help sort our emissions problem worldwide. -
Researchers at UC Berkeley have invented a material in powder form that adsorbs carbon dioxide with astonishing performance. Just 200 g (a little under 0.5 lb) can suck up 44 lb (20 kg) of CO2, the same as a tree does in a year. -
A technique originally developed to combat acid rain has the potential to pull an enormous amount of carbon dioxide out of the atmosphere – while helping to deacidify oceans, restore rivers and boost biodiversity and fish populations. -
Could salt, one of the oldest preservatives around, help keep carbon deep underground for thousands of years? Researchers believe it can, and that it might offer a way forward in containing a gas that's a major contributor to climate change. -
The oceans soak up enormous quantities of carbon dioxide, and MIT researchers say they've developed a way of releasing and capturing it that uses far less energy than direct air capture – with some other environmental benefits to boot. -
The US state of Wyoming is set to welcome the world’s largest direct air capture plant for the removal of atmospheric carbon dioxide. Called Project Bison, the facility is expected to suck up five million tons of CO2 each year by 2030. -
UC Berkeley chemists say they've created a simple, and very inexpensive way to capture carbon dioxide using a polymer called melamine, that's far cheaper than metal-organic frameworks. It could capture carbon emissions from smokestacks or tailpipes. -
We're seeing a growing emphasis on direct air capture technology in our efforts to combat climate change, and an interesting new take on this technology could see it put to use on railways around the world. -
Swiss outfit Climeworks has today broken ground on its second direct air capture plant in Iceland, and one that marks significant progress in its ambitions of removing gigatons of CO2 from the atmosphere each year by 2050. -
Carbon capture could be an important tool to fight climate change. Researchers have now developed a new compound that can reportedly remove carbon dioxide from ambient air with 99 percent efficiency and at least twice as fast as existing systems. -
Direct air carbon capture is currently far too costly – but this London company says it can do it at enormous scale for a tenth the price, using engineered algal blooms in ponds located near desert coastlines. Oh, and it'll de-acidify the ocean, too. -
The largest XPrize competition ever conducted has given out its first prize money, with 23 student teams receiving cash injections to further technologies that take aim at the problem of mounting carbon dioxide in the atmosphere.
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