Federal scientists warned in a new report Friday that changes in the climate will disrupt the economies of every region in the country in the coming years, with costs threatening to reach hundreds of billions of dollars annually by the middle of this century. The message, echoing decades of sobering conclusions from the world's leading climate scientists, is at odds with President Donald Trump's repeated scoffing at the idea of global warming. And the administration chose to release it on Black Friday, the busiest shopping day and one of the slowest news days of the year. But despite the timing,...