Scientists say a record-smashing March heat wave in the U.S. Southwest shows climate change is already driving more dangerous weather extremes. World Weather Attribution said Friday that the heat would have been virtually impossible without human-caused warming. Experts say extremes now hit more often, in odd seasons, and in unusual places. NOAA data shows a much larger share of the country sees extreme conditions than decades ago. An analysis by The Associated Press finds the U.S. breaks far more heat records than in past decades. One former FEMA official said disasters now fall outside old planning models and noted insurers pulling back.

Construction is finished on a major Massachusetts offshore wind farm, the first project to reach this stage during President Donald Trump’s time in office. A spokesperson for the project said Saturday that offshore construction was completed Friday night on Vineyard Wind with the installation of the final blades. Trump, who often talks about his hatred of wind power, has said his goal is to not let any “windmills” be built. Vineyard Wind submitted state and federal project plans to build an offshore wind farm in 2017. The Biden administration signed off on it in 2021, as it sought to ramp up offshore wind as a climate change solution. Construction began onshore in Barnstable, Massachusetts.

King penguins are adapting to climate change in a way that seems to help them breed successfully, which is unusual. Researchers tracked about 19,000 birds on a sub-Antarctic island chain and found breeding is starting 19 days earlier than in 2000. Wednesday's study links the earlier timing to a 40% jump in breeding success. That's a rarity in the natural world, where warming often means mismatches in timing for species that depend on each other, like bees and flowers. Scientists say the king penguins benefit from being flexible in diet and breeding. It's a climate change success story, but scientists caution it may only be for now.