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pilot project that sought to demonstrate that carbon dioxide emissions could be locked up by turning them into rock appears to be a success. Tests at the CarbFix project in Iceland indicate that most of the CO2 injected into basalt turned into carbonate minerals in less than two years, far shorter a time than the hundreds or thousands of years that scientists had once thought such a process would take. Read more: http://www.smithsonianmag.com/science-nature/iceland-carbon-capture-project-quickly-converts-carbon-dioxide-stone-180959365/#GpYzrDcLOjF1tUZx.99 Give the gift of Smithsonian magazine for only $12! http://bit.ly/1cGUiGv Follow us: @SmithsonianMag on Twitter

Researchers in Iceland found a new way of tackling climate change by pumping carbon dioxide underground and turning it into stone.

On July 20th, James Hansen, the former NASA climatologist who brought climate change to the public's attention in the summer of 1988, issued a bombshell: He and a team of climate scientists had identified a newly important feedback mechanism off the coast of Antarctica that suggests mean sea levels could rise 10 times faster than previously predicted: 10 feet by 2065. The authors included this chilling warning: If emissions aren't cut, "We conclude that multi-meter sea-level rise would become practically unavoidable. Social disruption and economic consequences of such large sea-level rise could be devastating. It is not difficult to imagine that conflicts arising from forced migrations and economic collapse might make the planet ungovernable, threatening the fabric of civilization."

America's energy economy is growing cleaner, but the country's embrace of gas and renewables is driving conventional energy giants to ship fossil fuels to buyers overseas. That might limit the climate impact of the greener U.S. energy economy, experts say. "The Obama administration wants to be seen as a climate leader, but there is no source of fossil fuel that it is prepared to leave in the ground," said Lorne Stockman of Oil Change International

China is starting to get serious about tackling pollution and climate issues, and the fate of the rest of the world could depend on how good a job Beijing can do at mapping out a sustainable course for the future. "We need more of everything," says Chinese sustainability leader Peggy Liu. "Wind, solar, a modernized grid. We need to leapfrog over the past and into a clean-energy future."