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.