A key archaeological site in Chile, Monte Verde, may be thousands of years younger than previously believed, according to a controversial study that challenges its status as one of the oldest human settlements in the Americas. The site, once thought to be 14,500 years old, is now under scrutiny by experts who call the new findings 'egregiously poor geological work.'
Meanwhile, the Western U.S. is experiencing a historic heatwave, with temperatures soaring above 110 degrees Fahrenheit in some areas, breaking March records. Scientists link the extreme weather to accelerating climate change, even as the Iran war prompts renewed discussions about oil dependency.