The fastest, cheapest, and most effective way to cut global warming
emissions is to simply reduce energy use. By deploying currently
available energy efficiency technologies, the U.S. can dramatically
cut global warming emissions while at the same time saving
consumers and businesses money. Additionally, these savings act like
a massive economy-wide tax cut, stimulating further economic
growth and job creation
For example, consider the tremendous potential for emission
reductions through energy efficiency in home heating and cooling,
which accounts for almost half of home energy use.10 Drafty
windows, poor insulation, and other air leaks waste vast amounts of
energy. In fact, the Department of Energy’s home weatherization
program cuts energy use for heating and cooling by an average of
30 percent per home.11 By expanding this program nationwide, the
U.S. could cut household energy use by 30 percent nationally and
save $1.50 for every dollar invested. Similarly dramatic
improvements are currently available from super-efficient air
conditioners, water heaters, and appliances.
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