research15
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1,000-Plus Years of Tree Rings Confirm Historic Extremity of 2021 Western North America Heat Wave
Scientists quickly pronounced the summer 2021 heat wave that hit western North America to be unprecedented, but they had no long-term physical proof. Now they do.
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Whole Food Systems: Jessica Fanzo Looks at How Food Connects With Everything Else
The Columbia Climate School’s newest faculty member strives to improve food systems to deliver healthy, equitable, and environmentally sustainable diets.
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Using a People-Centered Approach to Design Restoration Projects
A new study proposes a more holistic approach to planning restoration projects that do not “leave people off the map.”
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Without Changes, Global Food Systems May Drive World Beyond Climate Targets, Says Study
Production of meat, dairy and rice are the leading sources of food-related emissions. Improved management practices and changes in diet could go a long way to addressing the issues.
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Towering Wildfire Clouds Are Affecting the Stratosphere, and the Climate
Aircraft collecting data from clouds of smoke have revealed surprising effects of wildfires on the ground.
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Project Will Survey Organizations Active in Climate Communication and Education
If you’re part of an organization that works in climate communication and education, please take 20 minutes to complete the online questionnaire. Others can help by spreading the word.
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Ancient Eggshell Fragments Crack Giant Elephant Bird’s Life Secrets
In a region where skeletal fossils are poorly preserved, old eggshells are opening a window into the evolution, diet and distribution of Madagascar’s extinct birds.
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‘I Study the Ways Society Is Adapting to a Changing Climate:’ Meet Climate Scientist Lisa Dale
Columbia Climate School’s Lisa Dale is a political scientist who studies how policies, both domestic and international, might help us live more sustainable lives.
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Cataloging the Past for Clues to Future Climate Adaptation
A Q&A with archaeologist and anthropologist Kristina Douglass, who studies the evolving relationships between people and the environment.

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.
