George Perkins Marsh Prize
The George Perkins Marsh Prize is an annual book prize awarded by the American Society for Environmental History (ASEH). The prize, which was awarded bi-annually from its inception in 1989 until becoming an annual award in 2000, is awarded to what is adjudged to be the best book in environmental history.
Source: Wikipedia — George Perkins Marsh Prize (CC BY-SA 4.0)