An observatory high on Hawaii's Mauna Loa volcano that measures carbon dioxide in the atmosphere has reported its highest ever seasonal peak concentration of the greenhouse gas. For the first time, ...

Despite rising awareness about global climate change and its devastating impacts, carbon dioxide levels keep treading in the wrong direction. This year’s annual increase of CO2 levels is one of the ...

Carbon dioxide emissions from human activities and wildfires rose last year, while the land and oceans’ ability to absorb carbon diminished, leading to a record surge in the amount of the ...

Earth inhales and exhales carbon, indicating where and when vegetation is growing (sucking up carbon dioxide) or dying off (releasing carbon dioxide).