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Fear and Wonder podcast: how scientists attribute extreme weather events to climate change

The Conversation Weekly

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The Role of Ocean Temperatures in El Nino Activity

The ratio of two oxygen isotopes that you find in these coral skeletons. It's a very well-established and well-understood proxy for ocean temperatures. And she started looking at corals that have died, so they're not living corals anymore. That allows us to go back centuries back into the past and even thousands of years.

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