HLSC 1F90 Study Guide - Midterm Guide: Feedlot, Sub-Saharan Africa, Water Cycle
17 Sep 2016
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For more than 1 million years co2 levels moved within a natural bandwidth during the industrial revolution; humans started burning fossil fuels in larger amounts. With 7 billion humans, we rely on carbon-based fuels for 85% of our energy: humans currently produce over 35 billion tons of co2 each year*********** About 55% of that is absorbed into the ocean, land and vegetation while the rest remains in our atmosphere. The temperatures are rising and it is having consequences: 4% more moisture in the atmosphere above the ocean is enough to transition to a new normal, dramatic weather events; storms, floods, droughts, fires. By eliminating bias from energy companies, we can choose to go into more clean energy available to us in limitless supply. By embracing them we will create jobs, and improve the economy. Thus, the buffer we take from one year to the next is steadily falling leaving a fragile system.
