A new study from scientists at the University of Bristol shows environmental change is happening at an unprecedented rate. (Copyright Randall Hyman Photography) A published in the journal Nature Geosciencesandconducted by researchers at the University of Bristol's Cabot Institute found that the pace ofenvironmental change is occuring faster now than at any other previous time in the Earth's history. "The rate of change was considerably slower in the past," lead author David Naafs told weather.com. Naafs and his research team...