Share this on WhatsApp A “megadrought” gripping the western United States is the worst one in 500 years, scientists say. And it’s the first to be influenced by human-caused climate change. A study published this week in the journal Science investigates the occurrence of megadroughts in western North America over the last 1,200 years. While a megadrought has no … Continue reading Climate Change Has Helped Fuel a Megadrought in the Southwest