Will the Great Lakes be affected by global warming?

These lake surface temperatures are projected to rise by as much as 7°F by 2050 and 12.1°F by 2100. Higher temperatures, increased precipitation, and lengthened growing seasons are likely to result in increased production of blue-green and toxic algae in the lakes.



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That study found Lake Superior is expected to rise on average by 7.5 inches while levels on the Lake Michigan-Huron system is projected to increase 17 inches by 2050 due to climate change.

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Climate change is already taking a significant toll on the Great Lakes region. Rising temperatures exacerbate algal blooms in Lake Erie, leading to bacteria-polluted drinking water in Toledo, Ohio, potentially causing a number of harmful health conditions for half a million residents.

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According to the average of their simulation ensemble, by 2040–2049, the average annual water levels of Lake Superior, Michigan-Huron, and Erie are projected to increase by 0.19, 0.44, and 0.28 m, respectively, relative to 2010–2019 under the Representative Concentration Pathway (RCP) 8.5 scenario.

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10% of the entire planet's fresh water are contained in one inland sea. The amount of snow that gets melted and runs into the Great Lakes each year is so vast, that there is zero chance of running low. Droughts don't exist up there. Here in Perth Western Australia we have a dam, little rain and treated water.

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Lake Superior is heating up. It might not seem like it if you take a dip in its barely tolerable waters anytime except the hottest August day. But nearly every year, the 31,700-square-mile lake warms a little.

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What you can do to fight climate change:
  1. School yourself. Well done! ...
  2. Conserve water. The water that we drink and bathe in comes from the Great Lakes. ...
  3. Travel smart. You can 'greenify' your daily commute. ...
  4. Limit consumption. ...
  5. Eat less meat. ...
  6. Eat locally grown food. ...
  7. Push for change. ...
  8. Talk to people.


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Lake Erie drains into Lake Ontario via the Niagara River. The entire system flows to the Atlantic Ocean via the St. Lawrence River. As it flows from its westernmost point in Duluth, Minnesota to the Atlantic Ocean, the waterway drops in elevation approximately 600 feet.

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No. People are not capable of changing things on that scale. We could easily pollute the water and make it undrinkable, but we can't drain the lakes, because there is just too much water there, and it's constantly refilled from too many sources, including rain and snow melt.

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The most dangerous predator in the Great Lakes is the sea lamprey, which was actually introduced as an invasive species. Primarily, it goes after a sports fish called the lake trout, often wounding them as they kill them off. It is also attracted to the blood and bodily fluids of any creature.

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Significant progress has been made in reducing toxic chemicals in the Great Lakes, but some chemicals, such as PCBs, still pose a threat to human health and the environment. polycyclic aromatic hydrocarbons (PAHs), are higher in the waters of lakes Erie and Ontario than in other lakes.

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