IPCC


The prairie pothole region is home to 50% of North America's waterfowl, but a climate threshold exists where they might not survive a 2°C warming. Photo: USFWS

Half a Degree of Warming Could be the Difference Between Survival and Extinction for Many Species

, deputy director, Climate & Energy Program

As a conservationist who has been ringing the alarm bells on climate change threats to biodiversity for more than 25 years, I hardly know where to start in responding to the findings of the newest, and most alarming, Intergovernmental Panel on Climate Change (IPCC) Special Report on the impacts of a 1.5°Celsius global warming.  I’m not surprised that the IPPC delivers more bad news after reviewing more than 6,000 recent scientific reports, but I am surprised by just how bad the news is.

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Credit: USFWS
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Photo: IISD

Understanding 1.5°C: The IPCC’s Forthcoming Special Report

, senior climate scientist

The Intergovernmental Panel on Climate Change (IPCC) – an international body that develops non-policy prescriptive climate science assessments for decisionmakers – is currently compiling a Special Report that will provide information on what it would take to limit global warming to 1.5 degrees Celsius above pre-industrial levels. The report will also assess the climate impacts that could be avoided by keeping warming to this level, and the ways we can limit the worst impacts of climate change and adapt to the ones that are unavoidable. Read more >

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Photo: WClarke/Wikimedia Commons

How Do Big Oil Companies Talk about Climate Science? Four Takeaways from a Day in Court

, climate scientist

In front of a standing room only courtroom audience, the case of The People of California vs. B.P. P.L.C. et al. took an important step forward yesterday. In this case, the cities of San Francisco and Oakland, CA, are aiming to hold five major fossil fuel companies responsible for climate damages, particularly with respect to sea level rise. So how did the big oil company defendants present their version of climate science? And how did it compare to the scientific consensus? Together with my UCS colleague Deborah Moore, Western States Senior Campaign Manager, I was lucky enough to get a seat in the courtroom. Here are four of our takeaways from the day: Read more >

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US Withdrawal from UNESCO Will Undermine Collaboration on Science and Culture

, deputy director, Climate & Energy Program

The Trump Administration’s war on science has intensified with the announcement that the US is withdrawing from UNESCO, the international organization that works to promote peace & security through international cooperation on education, science and cultural programs.  Read more >

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A 2014 session of the International Panel on Climate Change (IPCC)—a crucial "dot" in a connected climate science narrative. Photo: IPCC (Flickr)

Connecting the Dots on Climate Science: The Importance of a Complete Science Narrative

Keith Daum, , UCS

In Walter M. Miller’s classic apocalyptic novel, A Canticle for Leibowitz, an atomic holocaust leaves the world in a modern version of the Dark Ages. In this post-apocalyptic world, books are burnt and cultural information destroyed by anti-intellectual mobs. The monks of a small knowledge-hoarding religious institution try to preserve, understand, and control what information remains. Read more >

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