A new U.S. government report says climate change is affecting the United States. It warns that the danger of destructive weather events, from powerful storms to extremely dry weather and wildfires, is worsening. Some findings are in conflict with the statements and policies of President Donald Trump. The report, called the Fourth National Climate Assessment, was released on November 23. It was written long before the deadly fires in California this month and before Hurricanes Florence and Michael struck the East Coast. The report noted that U.S. records for destructive weather have been set in recent years. Weather-related damage has cost nearly $400 billion since 2015, The Associated Press reported. The climate assessment is required by law every few years. It was based on more than 1,000 earlier research studies.