Impacts Indigenous knowledge puts industrial pollution in perspective A 3-year project documents how climate change is affecting the sequestration of decades-old mining by-products in Canadian lakes.
Impacts www.cbc.ca California's chronic water overuse leads to sinking towns, arsenic pollution For more than a century farmers in California's Central Valley have been pumping water out of the ground — so much so that the land is slowly sinking, a process known as subsidence. In less than 100 years, it's dropped 8½ metres.
