The biggest source of additional CO2 is the combustion of fossil fuels – oil, natural gas and coal – to power vehicles, ...

Atmospheric concentrations of carbon dioxide made history last month by climbing to their highest seasonal peak available in historical records, a team of researchers reported. For the first time ever ...

A massive new review of ancient atmospheric carbon-dioxide levels and corresponding temperatures lays out a daunting picture of where the Earth’s climate may be headed. The study covers geologic ...

Atmospheric CO2 levels hit the highest level in human history The Earth has hit another climate milestone, and it's a stark reminder that when it comes to climate change, the planet is moving in the ...

Despite an ever-growing body of evidence indicating we're now living beneath unprecedented levels of atmospheric greenhouse gases, a lack of thorough historical knowledge has hindered our ability to ...

The levels of the crucial heat-trapping gases in the atmosphere reached historic highs last year, growing at near-record fast paces, according to the U.S. National Oceanic and Atmospheric ...