U.S. EPA @EPA
❄️ Ice covering the Great Lakes is a #ClimateChange indicator, and since 1973 the number of frozen days on all 5 Great Lakes has declined. Overall, the #GreatLakes are frozen for 8 to 46 *fewer* days now than they were in the early 1970s. Learn more ⬇️ ️https://t.co/7EiqvWFwvJ https://t.co/MkxKC4uXHK — PolitiTweet.org