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Global Emissions Trajectories https://www.climateinteractive.org/tools/scoreboard/scoreboard-science-and-data/

Tailpipes top smokestacks as nation's largest CO2 emitters http://www.carsclimate.com/2016/09/tailpipes-top-smokestacks.html

Before the Cubs last won the World Series, there was…

One writer in the Times of London predicted “In 50 years, every street in London will be buried under nine feet of manure.” One New York prognosticator of the 1890s concluded that by 1930 the horse droppings would rise to Manhattan’s third-story windows.

How do the waste outputs of the horse-drawn and horseless carriage compare? Daily range: about 20 miles Daily output: about 37 pounds of solid waste Waste per mile: 1.85 pounds  about 4.4 gallons per 20 miles 1 Automobile: Gasoline consumption: 0.05 gallons per mile (20 miles per gallon) CO2 generated per gallon of gasoline burned: 20 pounds CO2 produced per mile: 1 pound If this were deposited on the streets in solid form (dry ice or calcium carbonate) the volume would be about 1.5 to 2 gallons per 20 miles This level of waste generation from transportation would be totally unacceptable if we could see it, smell it or step in it.

As we consider economic, regulatory and other levers to reduce GHG emissions from transportation, we should also think about ways to bring home to the public the size of our carbon emissions and their consequences.