Carbon Dioxide

The discovery of seemingly home-grown carbon dioxide suggests Europa's ice-covered ocean could be habitable.

NASA's James Webb Space Telescope has detected potential traces of dimethyl sulfide, a chemical only known to be created by phytoplankton on Earth, in the atmosphere of an exoplanet believed to have its own liquid ocean.

The animations highlight emissions from different human and natural sources, with the main contribution coming from the burning of fossil fuels.

The atmospheric temperature spike, which was caused by geomagnetic storms triggered by the sun, suggests the "solar maximum" is fast approaching.

Researchers have mapped out at least 85,000 volcanoes on Venus' surface, and recent findings suggest that some of them are likely active.

Staving off the worst impacts of climate change means preventing global temperatures from rising more than 1.5 degrees Celsius above preindustrial levels. But CO2 emissions are so high that we are slated to cross that line within a decade.

Diamonds may be forever, but that's not true of most minerals.

Hordes of mountain pine beetles are decimating British Columbian forests.

Tree growth in temperate forests is driven by availability of water and not by temperature as previously thought.

River bacteria can break down plant-based carbon, exhaling it as carbon dioxide.