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Canuck_2
Senior Contributor

Less ice

Too warm to freeze the lakes.

That causes problems from erosion and more open water to produce off lake streamers to dump more snow however so far this year we have not had the right winds to produce too much snow.

It also leaves the lakes open to more agitation from the wind and waves which stirs up nutrients rather than allowing them to settle out so sets up for more bacteria blooms in the summer

 

https://lfpress.com/news/local-news/great-lakes-ice-cover-shrinks-with-big-toll-on-leisure-erosion-e...

Ice coverage on the Great Lakes hit record lows in January and is well below the seasonal average, prompting concerns from experts about the environmental impact caused by a lack of ice.

As of Jan. 25, 7.7 per cent of the Great Lakes have frozen over, based on data from the National Oceanic and Atmospheric Administration, a U.S. science agency.

Ice levels were as low as 1.8 per cent on Jan. 15, a record-low for the mid-January period.

The abnormally low levels in 2021 reflect a longstanding trend of Great Lakes ice coverage declining by about 5 per cent per decade since the 1970s.

“The downward trend is a trend by global warming,” said Jia Wang, an ice climatologist with U.S. National Oceanic and Atmospheric Administration.

“What’s worrisome is this higher frequency of lower ice,” said Michael McKay, executive director of the Great Lakes Institute for Environmental Research at the University of Windsor, adding years with abnormally low ice are becoming more common.

Since 2000, 14 of the last 21 years have had ice coverage levels below the 53 per cent average.

McKay said ice cover on the Great Lakes has dropped 70 to 75 per cent in the past 40 to 50 years. “It has really run parallel to what we’re seeing the arctic and Antarctic,” he said.

 

1 Reply
r3020
Senior Advisor

Re: Less ice

Scientist John Kerry says 90% of emission come from outside the US so even if we go to zero emission it will have nearly no impact on the environment.