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Why Were 2023 and 2024 So Hot?

Union of Concerned Scientists

Scientists are sounding the alarm because this warming is shockingly bigbigger than what we would have expected given the long-term warming trend from fossil fuel-caused climate change. Albedo is the total reflection of incoming solar radiation by Earth. But why were 2023 and 2024 so warm? What is albedo?

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Why the World Needs a New UN Study on the Effects of Nuclear War

Union of Concerned Scientists

Since the last time the UN commissioned such a report—its 1988 Study on the Climatic and Other Global Effects of Nuclear War —the world population has grown and changed in distribution, economies have become more interdependent, and the environment more fragile. What role should scientists play in nuclear weapons policy?

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Why Climate Scientists Are Sounding the Alarm on the Ocean Circulation System AMOC

Union of Concerned Scientists

Last month, 44 climate scientists from 15 countries wrote an open letter to the Nordic Council of Ministers highlighting the risk of a potential collapse of the Atlantic Meridional Overturning Circulation (AMOC), a critical ocean current system in the Atlantic Ocean. The Earth’s climate system does not like imbalances in heat!

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What Is a Climate Model and How Does It Work?

Union of Concerned Scientists

Climate models are the main tool climate scientists use to predict how Earth will respond to more heat-trapping pollutants in the atmosphere. But what exactly is a climate model? Lets start off easy by breaking down the phrase climate model.” change at each grid point. What causes a circulation?

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How Do ‘Future Climate Scenarios’ Shape Climate Science and Inform Policy? 

Union of Concerned Scientists

The IPCC compiles scientific insights on climate change, informing policymakers and the public about risks and possible actions. In essence, combined with climate models, they provide a way to envision the consequences of different actions or inactions. What Are Future Climate Scenarios?

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Upcoming Developments in International Governance of Marine Carbon Dioxide Removal

Law Columbia

The Intergovernmental Panel on Climate Change has concluded that CDR will be needed, alongside deep emissions cuts, to limit global warming to 1.5 Solar radiation management is distinct from CDR. Notably, it would not in any way change the text of the London Convention or Protocol, or the 2013 amendment.

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How to Vet Presidential Nominees for Their Science Savvy—a Handy Checklist for Senators

Union of Concerned Scientists

For instance, explaining nuclear toxicology concepts is important for helping the public understand why and how to avoid radiation exposure. Problem-solving abilities: They should be adept at identifying problems and developing innovative, science-based solutions.