A new study of sediment cores shows a series of massive emissions of carbon dioxide over a 20 million year period about 300 million years ago. These CO2 emissions happened at the same time as drops in ...

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

CASCADE, Mich. — Looking for a fun activity to do at home with your kids? This science experiment is fun for all ages and teaches how oxygen and carbon dioxide have different densities! Meteorologist ...

To mitigate global climate change, emissions of the primary culprit, carbon dioxide, must be drastically reduced. A newly developed process helps solve this problem: CO2 is directly split ...

Earth’s oxygen reservoir. The biological mechanism that produces oxygen-splitting water molecules during the light-dependent stage of photosynthesis.

During WWII, scientists experimented on themselves to help divers and submarine crews. The scientists conducted over 600 experiments on themselves, breathing CO2, oxygen, and more gases. The British ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...