A new study reports the first measurements of 13C18O in atmospheric carbon monoxide (CO) and show their variations reflect chemical ‘aging’ consistent with predicted kinetic isotope effects.
fossil fuels
Posted inEditors' Highlights
Biogenic Sources Still Dominate Organic Carbon Aerosol in Europe
Scientists use radiocarbon measurements from Alpine ice to quantify present and past anthropogenic versus biogenic sources of organic carbon aerosols in the European atmosphere.
Posted inNews
Super Tuesday Lays Out Election’s Environmental Stakes
U.S. elections could pull the country back from several environmental tipping points—or push it beyond them. Scientists are urging people to seek climate action beyond the ballot.
Posted inNews
Trump, Haley Tell Voters: Economic Prosperity Requires Fossil Fuels
Both Republican front-runners promise a better economy via oil and gas production.
Posted inNews
The Climate Crisis Briefly Crashes the New Hampshire GOP Primary
Republican candidates repeated earlier promises to expand domestic fossil fuel production and fight programs that promote race- and gender-based equity in schools.
Posted inNews
Drought Leads to More Fossil Fuel Emissions
Hydropower lost in one area is often replaced by fossil fuel power produced elsewhere—and renewable energy sources may struggle to meet electricity demands caused by more frequent dry spells.
Posted inEditors' Highlights
Sleuthing for Culprits of Greenhouse Gas Emissions
A new approach to detect hot spots of methane emissions with eddy covariance flux towers proves to be a worthy contender.
Posted inFeatures
Sandeep Pai: A Just Transition to Clean Energy
Making sure people whose incomes rely on fossil fuels aren’t left behind as alternative energy sources become more established.
Posted inResearch Spotlights
Side Benefits of Climate Action May Save Millions of Lives in Africa
Premature deaths due to air pollution would decline across the continent.
Posted inNews
Fossil Fuels Drive Increase in Atmospheric Helium
After decades of uncertainty, scientists have finally shown that fossil fuel extraction has flooded the atmosphere with 4He.