26 Jul 2012:
Pulling Carbon From Air
Should Be Pursued Despite Costs, Study Says
Columbia University scientists say that technologies to extract carbon dioxide from the air will likely become a critical part of any strategy to stabilize the global climate and should not be abandoned because of high costs
. Writing in the Proceedings of the National Academy of Sciences
, the researchers from the
university’s Earth Institute argue that the use of technologies to remove emissions at the source — such as at coal-powered plants — will not go far enough because they don’t address the transportation sector, which accounts for up to half of global CO2 emissions. In addition, the scientists say that the shift to renewable energy sources will likely not occur fast enough. Technologies that remove CO2 from the atmosphere on a large scale — such as forests of artificial trees or the use of absorbent liquids that extract CO2
— could help avert potentially dangerous warming. While the costs will likely be high at first, the paper said, they will come down as the technologies are more widely deployed. “The field of carbon sequestration as a community is too timid when it comes to new ideas,” said Klaus Lackner, lead author of the paper. “You cannot rule out new technology simply because the current implementation is too expensive.”
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
The 2015 Yale e360 Video Contest winner documents a Northeastern town's bitter battle over a wind farm. Watch the video.
is now available for mobile devices at e360.yale.edu/mobile
A 2015 Yale e360 Video Contest winner captures stunning images of wild salmon runs in Alaska. Watch the video.
video goes onto the front lines with Colorado firefighters confronting deadly blazes fueled by a hotter, drier climate. Watch the video.
A three-part series Tainted Harvest
looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup. Read the series.
Top Image: aerial view of Iceland
. © Google & TerraMetrics.