If you burn brush it releases carbon dioxide, but if you let it decompose it produces methane.
The speedclimbing highliner died while BASE-jumping off Taft Point in Yosemite.
From even deader cemeteries to unsavory tap water.
Despite greenwashing schemes, Monsanto may be the death of the monarch butterfly.
Male Anna's hummingbirds become fiercely territorial at the start of the breeding season.
The world's population is unlikely to stop growing this century.