Hydrofluorocarbons, used in refrigerators, are an important greenhouse gas.

Professors and students in Ghana University want the statue of Gandhi removed, saying he was bigoted against Africans and endorsed the caste system (which he did).

I suggest they replace it with a statue of Dr Ambedkar.

Molly Crabapple comments about Trump, the sex fetish of the angry ignorant.

It is now clear that bicycle helmets cut the danger of a head injury in half, and the reduces the danger of a serious or fatal head injury even more.

How global heating denialists can believe many contradictory "arguments" at once.