During Thursday's presidential debate, Donald Trump claimed that wind turbines kill "all the birds." Wind turbines kill about 234,000 birds a year, whereas cats kill 2.4 billion. North America may have lost nearly 3 billion birds, a quarter of its total bird population, since 1970. During Thursday's final 2020 presidential debate, President Donald Trump repeated a claim he's made throughout his presidency: that wind turbines are extremely deadly to birds. "I know more about wind than you do," Trump told former Vice President Joe Biden. "It's extremely expensive, kills all the birds, it's very intermittent, it's got a lot of...