A saildrone observed the growth and decay of a bloom of ocean plants in the Alaskan Arctic in late summer 2017. Such blooms affect the rate of regional ocean acidification, which occurs as surface waters absorb human-produced carbon dioxide.
A lack of persistent sea ice in waters around the Bering Strait this winter disrupted travel, damaged roads and other infrastructure, and prevented traditional hunting and fishing in several coastal communities in western Alaska.
Global warming will make heat waves hotter, longer, and more frequent. Communities in the U.S. West and the Great Lakes region may have the least time to prepare.
The most recent 8-14 day outlook for the United States predicts a turn towards wintry temperatures across the eastern United States, but much warmer than average temperatures in the West.
Forecasts say a La Niña climate event is likely to occur in the tropical Pacific during winter 2017-18. How will this "upstream" event affect U.S. temperature, precipitation, and drought?
Sure it's hot, but is it record hot? This map shows the hottest summer daytime high temperature recorded at thousands of U.S. stations prior to this summer.
How do this year’s temperatures on the first day of summer compare to historical highs and lows? Compare your local conditions to these maps showing the warmest and coldest first days of summer for more than 4,000 U.S. locations.
