“The impacts of long-term global warming are already being felt — in coastal flooding, heat waves, intense precipitation and ecosystem change,” Schmidt said.
The strongest warming trends are occurring in the Arctic, according to NASA. A hole was recently found in a glacier in Antarctica that's the size of two-thirds of Manhattan and 1,000 feet deep. Other effects include heat waves in Australia and hurricanes like Michael and Florence, Schmidt told The New York Times.
"This has been a historic period of weather and climate extremes," Adam Smith, lead researcher at NOAA's National Centers for Environmental Information, told CNN.