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Rush-hour traffic on a freeway

The study's findings should help support wider agreement on climate policy, where cleanup costs and equity between rich and poor countries are key issues. (Thinkstock photo)

Mass transit could save megatons of C02

More than $100 trillion in public and private spending could be saved between now and 2050 if the world expands public transportation, walking and cycling in cities, according to a new report released by UC Davis and the Institute for Transportation and Development Policy. Additionally, reductions in carbon dioxide emissions reaching 1,700 megatons per year in 2050 could be achieved if this shift occurs.

Further, an estimated 1.4 million early deaths associated with exposure to vehicle tailpipe emissions could be avoided annually by 2050 if governments require the strongest vehicle pollution controls and ultralow-sulfur fuels, according to a related analysis by the International Council on Clean Transportation included in the report.

Doubling motor vehicle fuel economy could reduce CO2 emissions by an additional 700 megatons in 2050.    


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