Climate159
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Columbia Affirms Commitment to Climate Action
Columbia joins leaders from across higher education, the private sector and state and local governments in affirming their commitment to the Paris Agreement.
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We’ll Always Have Paris: Trump’s Impact on the Climate Agreement
While we still do not know the long-term impact of President Trump’s withdrawal from the Paris climate accord, the short-term impact has been to mobilize a broad segment of the U.S. and global public in support of the agreement.
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Reactions from Earth Institute Experts on Trump Pulling out of Paris
Experts from across the Earth Institute give their reactions to the news that the U.S. will exit the Paris climate agreement.
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‘We are Headed Towards Hostile State of the Climate System’
Yochanan Kushnir: “As a climate scientist who directly engages in studying the phenomena and mechanisms of climate variability and change I am convinced that we are headed towards a different, and to many people hostile, state of the climate system, with a worldwide impact including many parts of the U.S.”
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Implications of Leaving Paris More Intricate Than You Think
The implications of withdrawal are more intricate than what people have been fixating on so far.
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The Paris Climate Agreement: What Trump’s Decision to Leave Means
In the wake of the decision by the Trump administration to withdraw from the 2015 Paris climate agreement, several questions have emerged about what withdrawal means for environmental policy, research and innovation.
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Meltwater Lakes Existed Under Antarctic Ice in Ancient Times
In recent years, scientists have discovered hundreds of lakes lying hidden deep beneath the Antarctic ice sheet. Now a team of researchers has found the remains of at least one sub-ice lake that existed when the ice was far more extensive, in sediments on the Antarctic continental shelf.
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IRI Unveils Its New Generation of Climate Forecasts
This spring, IRI implemented a new methodology for seasonal temperature and precipitation forecasts. We asked Simon Mason, Andrew Robertson and Tony Barnston, senior climate scientists who lead the development and tailoring of IRI’s forecasts, to answer some fundamental questions about the new forecast.
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America’s Dam Crisis: Was Oroville Just a Drop in the Bucket?
Columbia Water Center experts argue that dam infrastructure issues must be connected to a broader conversation about America’s water resources.

Columbia Climate School is bringing bold ideas, leading experts, and groundbreaking research to Climate Week NYC. Explore our events, stories, and updates as we help shape the conversation on climate action across New York City.
