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Like many cities, Denver's largest source of greenhouse gas emissions is its buildings. Heating and cooling skyscrapers requires a lot of fossil fuels. Now, the city is trying a surprising solution.

n.prDenver has a plan to heat and cool buildings without fossil fuels. It involves … sewage?Like many cities, Denver's largest source of greenhouse gas emissions is its buildings. Heating and cooling skyscrapers requires a lot of fossil fuels. Now, the city is trying a surprising solution.

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Tnx. Making buildings more efficient is crucial. But where is the data showing buildings rather than cars create the most climate pollution? www.epa.gov/ghgemissions... suggests otherwise. And for buildings, cities are far less polluting than suburbs, a fundamental creation of cars. Why ignore that?

epa.govInventory of U.S. Greenhouse Gas Emissions and Sinks | US EPAThe national greenhouse gas inventory is developed each year to track trends in U.S. emissions and removals. Find emissions by source, economic sector and greenhouse gas.

Thanks. The comment did not critique Denver. The opposite, it asked why NPR suggested cities are the problem, when the data points to individual cars. But Denver could be doing more. One example is charging residents only $20 to park all year on its streets, when the market value is $2,000 or more.

Thanks. It seems like a great question. There's reason for real concern there. This however was a response to NPR suggesting that buildings in US cities are the major issue when it comes to climate pollution, and that seems doubtful compared to car effects, and I don't see their data on that claim.