大湖冬季冰层每十年减少5%,影响生态系统和7B捕鱼业。 Great Lakes winter ice cover declining 5% per decade, impacting ecosystems and a $7B fishing industry.

大湖的冬季每十年大约缩短两周,自1970年代以来冰盖每十年减少5%。 Winters on the Great Lakes are shortening by about two weeks per decade, with ice cover declining by 5% each decade since the 1970s. 这一趋势与气温上升和气候变化有关,影响到养分和氧循环,有可能破坏湖泊生态系统和70亿美元的捕鱼业。 This trend, linked to rising temperatures and climate change, affects nutrient and oxygen circulation, potentially disrupting the lakes' ecosystems and the $7 billion fishing industry. 诸如威斯康星州等最近的冬季中期冻土进一步表明冬季较短、更暖和的趋势。 Recent mid-winter thaws, such as in Wisconsin, further indicate the trend of shorter and warmer winters.