|Carbon dioxide (Photo credit: Wikipedia)|
|ball-and-stick model of CO2: carbon dioxide (Photo credit: Wikipedia)|
Can Sucking CO2 Out of the Atmosphere Really Work?
air capture, which means, essentially, scrubbing it from the sky. ..... As emissions have accelerated—they’re now rising at 2 percent per year, twice as rapidly as they did in the last three decades of the 20th century—scientists have begun to recognize the urgency of achieving so-called “negative emissions.” ..... “Once capturing carbon from the air is profitable, people acting in their own self-interest will make it happen” ...... In the winter of 2008 Eisenberger sequestered himself in a quiet house with big glass windows overlooking the ocean in Mendocino County, California. There he studied existing literature on capturing carbon and made a key decision. ...... a 40-foot-high tower of fans, steel, and silver tubes ..“It’s doing exactly what the tree is doing,” says Eisenberger. But then he corrects himself. “Well, actually, it’s doing it a lot better.” ....... “There’s really little chance that you could capture CO2 from ambient air more cheaply than from a coal plant, where the flue gas is 300 times more concentrated” ...... deriving fuels from biomass—which removes CO2 from the atmosphere as it grows. As that feedstock is fermented in a reactor to create ethanol, it produces a stream of pure carbon dioxide that can be captured and stored underground ...... scientific advances made in air capture will eventually be used primarily on coal and gas power plants.