A new study suggests rising carbon-dioxide levels may be slowly changing human blood chemistry and could impact long term ...

A July 13 Instagram post (direct link, archive link) features a graph charting historic atmospheric carbon dioxide levels and temperature variations over the past 400,000 years. “Antarctic ice core ...

A Dec. 17 Facebook post (direct link, archive link) claims a CO2-driven greenhouse effect is not causing modern climate change. "The greenhouse effect is a hoax," reads the post's caption. "There is ...

Earth’s atmosphere now has more carbon dioxide in it than it has in millions — and possibly tens of millions — of years, according to data released Thursday by the National Oceanic and Atmospheric ...

Carbon dioxide levels in the atmosphere rose by a record amount to new highs in 2024, locking in yet more long-term global warming, UN experts have warned. The annual update by the World ...

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 ...

It has happened. For the first time, atmospheric carbon dioxide levels at Mauna Loa Observatory in Hawaii passed a daily average of 400 parts per million. There is now more carbon dioxide in the ...