Aug. 15, CBC News:
A new study out of the University of Manitoba shows some lake predators are changing their behaviour due to climate change, which may have a wide-ranging effect on aquatic ecosystems.
Researchers watched the feeding habits of lake trout at the IISD Experimental Lakes Area in northwestern Ontario over an 11-year span and found the fish can quickly adapt their behaviour — moving to deeper and cooler parts of the lake to feed — as water temperatures rise.
Matthew Guzzo, a PhD candidate in the U of M’s department of biological sciences and lead author of the study published in the proceedings of National Academy of Sciences, said as temperatures rise, lake trout move from shallow, more productive waters to the deep part of the lake where water is cooler but food is of a lower quality. Read more.
June 23, Daily Commercial News:
Climate change is often seen as posing the greatest threat to the world’s coastal areas.
But inland cities face perils of their own, including more intense storms and more frequent flooding.
Revised flood forecasts from the U.S. Army Corps of Engineers has got inland American cities scrambling. It seems that many of their bridges are going to be too low to cope with increased river flows as the climate warms.
A little more than a decade ago the city of Des Moines, Iowa, spruced up an old train trestle, turning it into a pedestrian and cycling pathway across the Des Moines River. But little more than a decade later, crews were back to the site with a crane to hoist the span 1.4 metres at a cost of $3 million. That was after the corps concluded that the river’s flood risk was nearly double earlier estimates. Read more.
On Friday March 24, 2017 at 7:30 p.m. (EST) join TVO’s The Water Brothers as they visit IISD Experimental Lakes Area to learn how climate change is affecting our water.
The episode On Thin Ice will broadcast on the television channel TVO in Ontario at that time, and then will be available for free streaming across Canada on The Water Brothers’ website the next day.
On Thin Ice looks at how climate change might affect Canada’s fresh water, and explores what Canadian scientists are doing about it. When the Water Brothers came to the site last year, they took part in a wide range of experiments determining how warming waters and reduced lake ice cover is harming freshwater ecosystems.