Sign up for CNN’s Life, But Greener newsletter. Our limited newsletter series guides you on how to minimize your personal role in the climate crisis — and reduce ...

Some people check a wristwatch; others use a smartphone app or the position of the sun. But although these methods will tell you what time it is, they won’t reveal your internal time – that is, the ...

The first time I visited a tide pool near Los Angeles, I didn’t actually know that’s what I was looking at. “Why are all those people gathering over on those rocks?” I remember wondering. “What are ...