Time for a Vacation? Climate Change and the Human Clock

In the natural world, scientists have documented a vast range of shifts in biological behavior related to climate change, from birds laying their eggs earlier to bears emerging earlier from hibernation in time for the first blossom of spring.

As it turns out, humans are not excluded from such behavioral changes. Over the last 30 years, a new study has found, peak park attendance has shifted by about four days, probably in response to climate change.

Green — A Blog About Energy and the Environment has more.