Contiguous U.S. had its warmest May on recordUnited States of America 6 Jun 2018
National Oceanic and Atmospheric Administration
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Water flowing out of Lake Ontario hit record high last monthKingston, Ontario, Canada 14 Mar 2018
National Observer
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Assessing the U.S. Climate in September 2017Contiguous United States 1 Sep 2017
National Centers for Environmental Information (NCEI)
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Global Warming Pushes Maple Trees, Syrup to the BrinkDurham, New Hampshire, United States 2 Sep 2015
National Geographic
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