The US and China - together responsible for 40% of the world's carbon emissions - have both formally joined the Paris global climate agreement.
After arriving with other leaders of G20 nations for a summit in the city of Hangzhou, Mr Obama said: "History will judge today's effort as pivotal."
CO2 ...
The concentration of heat-trapping CO2 pollution in the atmosphere has passed the 400 parts per million (ppm) threshold in Antarctica for the first time in at least 800,000 years, and possibly as long as four million years, scientists reported this week.
The new measurements, reported by British an...
Making predictions about climate variability often means looking to the past to find trends. Now paleoclimate researchers from the University of Missouri have found clues in exposed bedrock alongside an Alabama highway that could help forecast climate variability. In their study, the resea...
NASA is preparing a July 1 launch for its first satellite dedicated to measuring atmospheric levels of carbon dioxide, a greenhouse gas that plays a key role in climate change.
CO2 levels have reached their highest point in at least 800,000 years, according to the US space agency.
The Orbi...
A rise in sea levels threatens the viability of more than 1,400 cities and towns, including Miami, Virginia Beach and Jacksonville, unless there are deep cuts in heat-trapping greenhouse gas emissions, says an analysis out Monday.
Prior emissions have already locked in 4 feet of future sea-...
The recent announcement by climate watchers that carbon dioxide level in the atmosphere has crossed a psychologically significant barrier of 400 parts per million raised all the intended alarm bells world over. In a field which has been continually consuming a lot of public attention, and where the ...
About 55.5 million years ago, geologically rapid emission of a large volume of greenhouse gases at the Paleocene-Eocene boundary (PETM) led to global warming of about 5oC, severe ocean acidification, and widespread extinction of microscopic organisms living on the deep-sea floor (foraminifera).
A s...
