Pre-European human populations of the Amazon Basin may have affected our understanding of the forest's structure and composition, and thus our calculations of its impact on carbon dioxide remediation.

A new study reported in the ACS journal Environmental Science & Technology Letters, has found that within two years, carbon dioxide (CO₂) injected into basalt transformed into solid rock.

Scientists have begun to account for the topsy-turvy carbon cycle of the Colorado River delta -- once a massive green estuary of grassland, marshes and cottonwood, now desiccated dead land.

The risk of a 35+ year megadrought in the American Southwest likely will rise from a low chance over the past thousand years to a 20- to 50-percent chance in this century.

August was the biggest month ever for U.S. gasoline consumption