When you head down to a lake in Canada this summer, you might spot more algae covering the surface than usual. This is just one of the scary impacts that our warming planet is having on lakes globally right now, according to a biology professor. It’s part of a pattern that is only going to increase with global warming, John Smol, a professor at Queen’s University, told CTV News Channel, painting a picture of lakes shrinking, others flooding, fish species dying out and algal blooms killing off underwater plants.