Documents Nonrenewable Energy Sources Environmental Science 302 2013.

Nonrenewable Energy Sources Environmental Science 302 2013 World and US energy sources Evaluating Energy Resources U.S. has 4.6% of world population; uses 24% of the worldâs…

Documents The lifetime of a resource depends on… 1.How much we have 2.How fast we use it.

The lifetime of a resource depends on… How much we have How fast we use it What resources does the US have? Fossil fuels = Coal Natural Gas Oil Why are we depleting our…