In a case about power plant emissions, arguments focused on whether the Environmental Protection Agency properly interpreted a regulation and on dramatically different cost-benefit analyses.
carbon emissions
Posted inNews
Kerry Blasts Climate Skeptics and Urges Action
In a tough speech on climate change, U.S. Secretary of State John Kerry calls out climate skeptics and calls for more efforts to curb emissions.
Posted inResearch Spotlights
Reduced Emissions Lead to Clearer Skies over Alabama
Aerosol pollutants are on the decline—and so are their effects.
Posted inScience Updates
Counting the Ocean's Greenhouse Gas Emissions
A new database seeks to improve estimates of oceanic emissions of methane and nitrous oxide.
Posted inResearch Spotlights
Colorado Hydrocarbon Leakage Rates Much Higher Than Reported
Airborne measurements put methane emissions from Colorado's Denver-Julesburg Basin at 12 to 26 tons per hour.
Posted inResearch Spotlights
Southwest’s Four Corners Home to Largest U.S. Methane Signal
Satellite data reveal fossil fuel harvesting operations in the Southwest's Four Corners are generating the country's largest methane signal viewable from space.
Posted inNews
Countries Worldwide Commit to Curbing Greenhouse Gas Emissions
Although the agreement is a political breakthrough, it falls short of keeping future temperatures from rising more than 2°C above those of pre-industrial times.
Posted inNews
Report Addresses Timeline for Cutting Greenhouse Gas Emissions
Levels of greenhouse gas emissions need to be limited by midcentury to keep within a 2°C increase, a new United Nations report states.
Posted inResearch Spotlights
Upper Atmosphere Has Cooled Steadily for Three Decades
Scientists projected that the upper atmosphere would continue to cool and contract with rising greenhouse gas emissions. Now, these projections have been confirmed for the first time.
Posted inNews
Methane-Producing Microbes Important for Studying Greenhouse Gas Emissions
Scientists have long thought that methane-producing microbes contribute to climate change but are slowly learning just how big a role these microbes play.