“If you cannot trust me,” Monarez said, “then you can fire me.” It was a remarkable display of discord of within the administration. Even more shocking, though, was that it was taking place at all.

His new book makes the case for going big on solar power—and abandons climate angst for ecomodernist optimism.

Here are 81 riddles for adults perfecting testing your brain. A: An egg. Q: I’m tall when I’m young, but short when I’m old, what am I?