President Barack Obama briefs European leaders, including Danish Prime Minister Lars L. Rasmussen, following a meeting at the United Nations Climate Change Conference in Copenhagen, Denmark, December 18, 2009. (Source: Official White House Photo by Pete Souza)
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On Saturday, October 17, 2026 from 10am to 4pm, Lamont-Doherty Earth Observatory Open House—our biggest, best science fun and discovery event of the year—will take place on our beautiful campus in Palisades, NY. Mark your calendar and join us for this free, family-friendly celebration of science! RSVP Today!