New York, July 20: Scientists in New York City and elsewhere are working to get a detailed picture of how much of the heat-trapping gas a city, neighbourhood or building puts in the atmosphere – and how much the urban environment can suck out.
Some researchers hope the data might eventually help shape efforts to curb carbon dioxide emissions and measure whether such efforts are effective. Carbon dioxide is one of the main contributors to climate change.
Columbia University environmental engineering professor Wade McGillis has set up seven carbon dioxide sensors in and around New York City.
He says the sensors often measure notably different carbon dioxide levels, even though two of them are only 3.2km apart in Manhattan.
—Agencies