Adam Markham/UCS
Adam Markham
Adam Markham is a former deputy director of the Climate & Energy program at the Union of Concerned Scientists.
Adam Markham/UCS
Adam Markham
US Army Corp of Engineers
Egor Gordeev/Unsplash
Chad Taylor/Unsplash
National Park Service
UNESCO/Li Kun
Adam Markham
Photo: CC/Wally Gobetz.
USGS/William Henry Jackson
Adam Markham
Dan Broun
Photo: Adam Markham
Credit: USFWS
An old whaling site on Svalbard, Norway. Photo: Adam Markham
Cape Lookout National Seashore, North Carolina. Credit: NPS
Panorama of the town of Keswick, nestled between the fells of Skiddaw and Derwent Water in the Lake District, Cumbria, England. Photo: David Iliff CC BY-SA 3.0 (Wikicommons)
U.S. Bureau of Land Management
Credit: NPS
Extreme rainfall events have severely damaged the adobe church at Tumacácori National Historic Park in Arizona. Photo: NPS
Gage Skidmore/Flickr