Environmental Science 3300F/G Lecture Notes - Lecture 22: Thermal Pollution, Multiple Cropping, Cloud Seeding
18 Dec 2017
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Document Summary
As our population is increasing, so is our need for resources o. This is a problem because we are almost maxed out as it is. Feeding the world pulls 70% of the water we use, 40% of the earth"s mass and creates 30% of greenhouse gases. Much of the food we grow doesn"t feed humans but rather goes to livestock or biofuels. New practice that feeds the earth"s growing population while decreasing agriculture"s impact on land, water and climate. New practice for maintaining sustainable food supply. Stop expanding agriculture: we already have land that"s being devoted to agriculture but a lot of it is sitting there and not being used o. So stop addidng additional land plots when we already have ones. Close yield gaps; make the land already used as productive as it can be. Increase agriculture resource efficiency: only water and/or spray when you need to. Change diets (reduce meat, reduce distance transported and reduce waste)
