Used coffee grounds can be recycled to make air filters that remove methane, a powerful greenhouse gas, from the atmosphere.
Bacteria release gasses that build up inside the body, causing it to float.
After a nine-year expedition, the New Horizon spacecraft finally reached Pluto to see what's at the heart of the exoplanet.
Sewage treatment plants and landfills both release a lot of greenhouse gases in the process of decomposing waste.
Global warming has created a feedback loop, wherein Arctic sunlight converts thawing ice into more CO2.
One of the world's oldest eternal fires gets demystified.
Canadian scientists studying water found deep in an underground mine have determined that the water is at least 1.5 billion years old, and maybe much older.
Global warming is a topic of political debate and scientific study these days. Is it happening? Scientists say the evidence is pointing in that direction.
Cows, goats, and sheep require symbiotic microbes to help digest the plant biomass that they eat, and some of these microbes make methane.
A study of water quality near hydraulic fracturing drilling sites suggests a correlation between natural gas drilling and methane contamination of water.