A new study of soil warns that we're pushing the limits of our planetary skin and in danger of pulling nutrients out of the earth too fast.
The Obama administration just gave a stamp of approval to Shell's Alaska drilling plan. *facepalm*
You’ll definitely get goosebumps when you hear the crescendo of climate change across the globe.
"Small Scale Farmers Cool the Planet" shows how organic farmers just might hold the key to slaying the biggest beast of our age.
Electric vehicles can have higher sticker prices than gasoline versions, but things look different if you consider all costs over five years.
Hundley's "The Great Thirst" reveals some surprising wrinkles and twists in California's long history of manhandling water to meet its needs.
A reader wonders whether "green tags" are as good as solar or wind power. Umbra does a little clean energy 'splainin'.
Some environmentalists are pushing her to run for president, but does her record warrant enthusiastic green support?
In one week, the company received $800M in reservations for its Powerwalls and Powerpacks.