It's easy to feel hopeless about climate change, to believe most solutions are out of your hands. But you can help fix one of the biggest environmental issues of our time, since it's probably growing right in your own yard: lawn grass. Most Canadian yards are a sea of non-native, inedible turf grass. Not evolved for our climate, it requires intensive maintenance, watering and fertilizer inputs, and provides virtually no value to native species. Yet this "eco-desert" is the largest irrigated crop in North America.
Floating island launched in Vancouver's Trout Lake meant to improve water quality
Trout Lake in East Vancouver is often among the first places in the city to be closed to swimmers each year because of poor water quality — namely E. coli. It's a scenic, small lake in John Hendry Park that's popular with locals, as well as ducks and geese. On Monday, the Vancouver Park Board launched a floating island into the lake with the goal of increasing biodiversity and helping with water quality.
These aquatic invaders pose a big risk in Alberta
Nicholas Mandrak, a professor at the University of Toronto who has spent much of his career studying invasive fish species in Canada, says impacts on water systems vary by species. Prussian carp, like goldfish and common carp, will uproot vegetation in order to find food. When that happens, the fish kill vegetation that may act as nutrient sinks in sewage lagoons or drinking water ponds.