Interesting: “Shell Says Biofuels From Food Crops ‘Morally Inappropriate’” (via EB) Next Article What does it mean to say global warming is ‘natural’? David Roberts Uncategorized Grist thanks its sponsors. Become one. Grist thanks its sponsors. Become one. To support our nonprofit environmental journalism, please consider disabling your ad-blocker to allow ads on Grist. Here's How