March 19,

First winter without Spy Pond hard freeze marks the end of an era and identity for the town.

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Rising global temperatures caused by greenhouse gas emissions is resulting in warmer winters. This global warming affects areas as large as the polar ice caps and as small as our local water bodies. According to the Arlington Conservation Commission’s “2020 Water Bodies Assessment and Recommendation Report,” due to the mild winter in 2020, at Spy Pond “there was no skating or ice fishing for the first time in memory.” 

Spy Pond was formed by melting glaciers many thousands of years ago. When it froze it was used to supply ice for Boston and for shipping to different parts of the world. Ice harvesting  from frozen lakes and ponds was an important tradition in the 19th century; skating and ice fishing remain popular today. While few towns in the US still continue the industry of harvesting ice, rising temperatures could bring an end to it altogether. As each decade passes, the temperature rises by around  1.3°F (0.7°C). The increase in temperature is also exhausting the pond's oxygen, allowing bacteria and algae to grow.