Now we will consider Arizona State University offsetting. a) Is there enough open space on the Arizona State University main campus to offset the fossil fuel C02 emissions (direct energy and electricity) with your fast-growing trees? b) If there isn’t enough space, how much more is needed? Some key factoids: Main campus is -642 acres Assume that 30% is open space (not covered by building) o Main campus emits -68,000 metric tons of carbon per year o There are 2.47 acres per hectare o Area of Tempe is 40 square miles