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“If people want to reduce carbon emissions, they must reduce their energy use.” — Paul Baier (MBA ’94)
The residential sector is the single-largest end-use sector for energy, accounting for 25 percent of global demand.
If every US home replaced one light bulb with the most efficient available, $600 million would be saved in annual energy costs.
If each household replaced its appliances with the most efficient available, $15 billion of savings in energy costs would result.
The top 3,000 public companies cause over $2.15 trillion, or one-third, of global environmental costs.
Collectively, US organizations waste $2.8 billion every year powering unused PCs. In 2009, these unused PCs emitted approximately 20 million tons of carbon dioxide equivalent — equal to the annual emissions of 4 million cars.
Transportation accounts for nearly 30 percent of US annual CO2 emissions.
Power plants are the single-largest source of US CO2 emissions.
For source citations for the above facts and all others in this article, visit www.alumni.hbs/bulletin/.
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