Carbon dioxide levels are higher than humans have ever experienced. It could be changing our blood chemistry

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

Atmospheric CO2 Getting So High That It’s Weakening Human Skeletons

According to new research published in the journal Air Quality, Atmosphere & Health, the rising concentration of CO2 in the ...
Los Angeles Times

Levels of heat-trapping carbon dioxide in atmosphere hit another peak and show no signs of slowing

The root cause of global warming is showing no signs of slowing as heat-trapping carbon dioxide in Earth’s atmosphere increased to record highs during its annual spring peak, jumping at one of the ...
Yahoo

The claim: Climate change is a 'hoax' because CO2 is only 0.04% of the atmosphere

A Feb. 7 Instagram post (direct link, archive link) shows Rep. Doug LaMalfa of California questioning a panel of transportation and construction experts about carbon dioxide at a congressional hearing ...
KPBS

There is more carbon dioxide than ever in the atmosphere. That’s bad for the climate

The amount of planet-warming carbon dioxide in the Earth’s atmosphere has hit a new record, as humanity struggles to rein in emissions of greenhouse gasses from burning fossil fuels. The new record ...

New ice core studies expand histories of greenhouse gases and ocean temperature to 3 million years

New analyses of ancient ice from Antarctica and the air contained inside it are extending the history of Earth's climate records and expanding researchers' understanding of how the planet has changed ...
New Scientist on MSN

Ice core reveals low CO2 during warm spell 3 million years ago

For the first time, scientists have measured atmospheric gases from the late Pliocene, yielding data that could help to predict the future climate ...