Add Yahoo as a preferred source to see more of our stories on Google. An observatory high on Hawaii's Mauna Loa volcano that measures carbon dioxide in the atmosphere has reported its highest ever ...

Carbon dioxide is accumulating in the atmosphere faster than ever before, putting hopes of limiting warming in jeopardy. For more than 60 years, scientists at the Mauna Loa Observatory in Hawaii have ...

The latest forecast from Met Office scientists indicates that the rate of atmospheric carbon dioxide (CO₂) increase this year will remain too fast to meet climate targets outlined for limiting global ...

GENEVA – Heat-trapping carbon dioxide levels in the atmosphere jumped by the highest amount on record last year, soaring to a level not seen in human civilization and “turbo-charging” the Earth’s ...

Surging emissions from wildfires may have been behind the increase, which was the largest since modern measurements began more than half a century ago. By Raymond Zhong and Sachi Kitajima Mulkey The ...

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 ...