My two-year-old is too young to know about climate change. He doesn’t understand what an "urban heat island" is either. He just knows that his papa keeps saying “No” because it's too hot out to go to ...

There are some 73,000 species of trees on Earth, according to one recent estimate. The writer Daniel Lewis zeroed in on a tiny fraction of them for his new book, "Twelve Trees." Each chapter is one ...