Arun Majumdar, the head of ARPA-E, the energy equivalent of DARPA, is stepping down next month.

Today, Tim DeChristopher is appealing his conviction for disrupting a federal drilling auction.

Reader support helps sustain our work. Donate today to keep our climate news free. All donations matched.

Europeans installed more solar power than any other kind of power last year.

Slate readers ranked increased energy R&D for dealing with climate change eighth on a list of global priorities, after reinventing the toilet and taxing tobacco. (You can thank climate crazy Bjorn Lomberg for this “experiment.”)

Grist thanks its sponsors. Become one.

The Wildlife Conservation Society videotaped Cross River gorillas, the world’s rarest gorillas.