Climate93
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Fossil Leaves Show High Atmospheric Carbon Spurred Ancient ‘Global Greening’
Scientists studying leaves from a forest that stood during a warm period 23 million years ago have for the first time linked high levels of atmospheric carbon dioxide with increased plant growth, as well with the high temperatures of the time.
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To Preserve Tropical Forests, Empower Local Communities
In a recent webinar, researchers discussed communities in Guatemala that sustainably manage the local forest, creating jobs and income while controlling fires and narcotrafficking.
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A New Way to Calculate the Price of Carbon Pollution
How to set carbon prices that are consistent with goals of both climate experts and economists.
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New Model for Pricing Carbon Will Help Meet Net-Zero Climate Change Goals
A new approach to carbon pricing avoids the pitfalls of calculating the social costs of carbon.
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Double Trouble: The Importance of Thinking About Compound Risk
Compound risk — when multiple risks occur simultaneously, or one after another — was the topic of a recent discussion as part of the Resilience Media Project, a part of the Initiative on Communication and Sustainability at the Earth Institute.
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Treading on Shrinking Ice
In a new book, glaciologist Marco Tedesco takes the reader on a personal journey through his sometimes dangerous work.
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Stronger Rains in Warmer Climate Could Lessen Heat Damage to Crops, Says Study
Intensified rainstorms predicted for many areas in the United States as climate warms could more efficiently water some major crops, which would at least partially offset projected yield declines caused by rising heat itself.
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How Ice Scouring in the Antarctic Disrupts Ecosystems
A recent study sheds light on how different types of species are affected by calving icebergs that tear apart the seafloor.
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The Planet Has a Fever
A recent study shows heat waves are growing longer and more frequent in almost every part of the world. The findings emphasize the need to take action against climate change.

You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!
