April fell first. It lasted through May. Now June will be the third month in a row with average carbon dioxide levels above 400 parts per million. Atmospheric concentrations of the greenhouse gas, ...

The claim: Antarctica hasn't warmed for over 70 years because humans have only contributed 40 ppm of CO2 to the atmosphere A Dec. 1 Instagram video (direct link, archive link) shows a headline that ...

Rising carbon dioxide levels are heating the planet but may also have an alarming, invisible impact on the human body, ...

Humans evolved in an atmosphere containing roughly 200–300 parts per million (ppm) of carbon dioxide (CO₂). Today, that figure sits above 420 ppm, higher than at any point in the history of our ...

There's now more carbon dioxide (CO2) in the atmosphere than ever before in human history, scientists have revealed. For the first time on record, monthly average CO2 levels exceeded 430 parts per ...

We have spent the entirety of calendar year 2016 above 400 ppm atmospheric carbon dioxide. If you aren't concerned, you aren't paying attention. Share on Facebook (opens in a new window) Share on X ...

June 5 (Reuters) - Carbon dioxide levels as measured atop a Hawaiian volcano extended their record-breaking rise in 2023, reaching a level more than 50% higher than at the onset of the industrial era, ...

A peer-reviewed study published in Air Quality, Atmosphere and Health on February 26, 2026, reports that average serum bicarbonate levels in American adults rose approximately 7% between 1999 and 2020 ...

Global warming alarmists are breathlessly filling the media with sensationalist reports of carbon dioxide levels approaching 400 parts per million (that’s 4 parts per 10,000, or a 0.0004 share of the ...

Global warming alarmists are breathlessly filling the media with sensationalist reports of carbon dioxide levels approaching 400 parts per million (that’s 4 parts per 10,000, or a 0.0004 share of the ...