In the study, published in Environmental Research Letters, scientists from the University of California, Berkeley and the University of Wisconsin-Madison show that temperatures in the national parks increased by 33.8 °F from 1895 to 2010.
In the study, published in Environmental Research Letters, scientists from the University of California, Berkeley and the University of Wisconsin-Madison show that temperatures in the national parks increased by 33.8 °F from 1895 to 2010.