Daily briefing: Current global warming is unparalleled in 2,000 years

Daily briefing: Current global warming is unparalleled in 2,000 years

Hello Nature readers, would you like to get this Briefing in your inbox free every day? Sign up here. Hawaii’s Keck telescopes pierce the sky with lasers that help to correct for atmospheric blurring. A new analysis of data from Keck and other observatories lends credence to general relativity.Credit: Ethan Tweedie Supermassive black hole tests…

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