Energy, economics, and the environment are interdependent. Land, water
, atmospheric, and biological resources are being degraded by current
high energy consumption. U.S. energy consumption is the highest in the
world and the U.S. Department of Energy reports that the United State
s has only about 10 years of known and potentially discoverable oil re
serves. The U.S. should reduce its energy consumption by one half to h
elp restore the quality of the environment while improving the America
n standard of living by strengthening the economy and increasing the n
umber of jobs. Because of the interdependence of energy, economics, an
d the environment, energy efficiency and transition to renewable energ
y sources are critical. An estimated 40% of current energy consumption
could be produced employing solar energy technologies, but would requ
ire about 20% of total U.S. land area. Therefore, the development of s
olar energy technologies to substitute for fossil energy is projected
to compete for land required for agriculture and forestry as well as h
ave other environmental impacts.