Humans evolved in an atmosphere containing roughly 200–300 parts per million (ppm) of carbon dioxide (CO₂). Today, that ...

From the air to our blood ...

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

Study Suggests Human Blood Could Be Pushed Past Its Healthy Limits Within 50 Years In A Nutshell A new analysis of U.S. blood test data from 1999 to 2020 found that average bicarbonate levels in the ...

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

Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...

The team calculated that the mosquitoes likely developed their “ anthropophily ”—their taste for human blood—at a point some 2.9 million to 1.6 million years ago. This overlaps with the same period in ...