Bloomberg : “Emissions from transportation may rise at the fastest rate of all major sources through 2050, the United Nations will say in a report due April 13. Heat-trapping gases from vehicles may surge 71 percent from 2010 levels, mainly from emerging economies, according to a leaked draft of the most comprehensive UN study to date on the causes of climate change.”  

“Rising incomes in nations like China , India and Brazil have produced explosive demand for cars and for consumer goods that must be delivered by highway, rail, ship or air. The new pollution, measured in millions of tons of greenhouse gases , may exceed all of the savings achieved through initiatives like subsidies for public transport and fuel efficiency.”  

“Global car sales will rise 4 percent to 70.2 million in 2014 from last year, and are forecast to jump 27 percent by 2020, according to IHS Inc. The researcher expects demand to peak around 100 million units.”  

“A decrease in emissions may come from government policies to change driving behavior, investments in public transport, substituting oil-based fuels in cars, ships and airplanes with natural gas, biofuels or renewable electricity, and new technologies such as lightweight vehicles and electric cars.”  

Crossposted at Wonk Wire.