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  • Al Roker talks to EPA administrator about extreme weather, ‘air inequality’ and more

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  • How American crocodiles are being saved from extinction

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Climate In Crisis: How rising sea levels threaten US landmarks

04:11

For a new NBC News series exploring the global environment, Al Roker takes a closer look at how climate change is causing sea levels to rise higher and faster than ever before. This is also impacting some of America’s most iconic landmarks.