Fifty years have passed since the first Earth Day, on 22 April 1970.
Earth 2020: An Insider\'s Guide to a Rapidly Changing Planet responds to a public increasingly concerned about the deterioration of Earth\'s natural systems, o.
This accessible, incisive, and timely collection of essays brings together a diverse set of expert voices to examine how the Earth\'s environment has changed over this past half century, and what lies in store for our Planet over the coming fifty years.
Fifty years have passed since the first Earth Day, on 22 April 1970