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Science Sessions Podcast

Upslope advance of forest fires

A forest fire burns in the Colville National Forest, Washington, USA.

Mohammad Reza Alizadeh, John T. Abatzoglou, and Mojtaba Sadegh report that forest fires have been advancing upslope across the western United States in recent decades.

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PNAS Front Matter delves into the stories of science. The section’s News Features cover research trends in depth, Opinion pieces further the debate on topics of interest to scientists and other readers with a keen interest in science, Inner Workings explore cutting-edge methods or approaches, Core Concepts are substantive explanations of timely terms, and Science and Culture articles feature intersections between research and aspects of culture. Journal Club blog posts are short news stories featuring a recent important, timely journal article selected by one of our Journal Club panelists, who are postdocs and graduate students in NAS members’ labs.

Science Sessions podcasts present brief conversations on topics relevant to today's scientific community, Profiles highlight the life and work of NAS members, QnAs are conversations with PNAS authors, and Retrospectives memorialize recently deceased NAS members.