After years of escalating greenhouse gas emissions from melting permafrost in the Arctic, scientists have discovered a similar problem from a new source: Colorado’s Front Range. Defrosting alpine ...

Thawing permafrost in high-altitude mountain ecosystems may be a stealthy, underexplored contributor to atmospheric carbon dioxide emissions, new University of Colorado Boulder research shows. The new ...

An ancient fossilized forest in Montana is reemerging 600 feet higher than the present-day tree line after spending the last 5,500 years encased in alpine tundra. But as temperatures continue to warm, ...

New research from Northern Arizona University shows rising temperatures are causing Earth’s coldest forests to shift northward, raising concerns about biodiversity, an increased risk of wildfires and ...

Jamie Sayen of Stratford is author of “You Had a Job for Life,” an oral history of the Groveton paper mill. Mount Washington’s summit region, an enchanting, wild, dangerous world, is home to the ...