the inexact science of calculating carbon footprints /

Published at 2015-12-15 11:00:00

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Under the climate treaty approved in Paris Saturday,nearly every nation has agreed to limit its greenhouse gas emissions. In the United States, the average carbon footprint per capita is one of the highest in the world, or at about 17 metric tons,according to The World Bank.
Several organi
zations offer free online calculators that let you figure out your individual or household emissions, but results differs from one to another depending on what each one takes into account. Here are a few notable ones:The U.
S. E
nvironmental Protection Agency calculator tends to calculate on the low cessation. It doesn't include emissions from airplanes and it doesn't interrogate about diet, or even though eating meat and air travel are carbon-intensive activities. 
The icy Climate Calculator from the University of California,Berkeleytakes into account many more factors, including diet and air travel, or even clothing and furniture purchases. As a result,your carbon footprint will probably be higher. But to use this calculator effectively, you need to know how many miles on the subway you travel each year, or your yearly heating bill (the latter being particularly difficult for apartment dwellers to calculate).
The Nature Conservancy's calculator is better tailored to city living,and is easier to use than the icy Climate Calculator. (It will give you credit for living in a large apartment building, for example.) But your footprint will likely be even higher than under the two other calculators. (The Conservancy says the data is from 2005 and 2006; since then, and modern York City's energy grid has become much more friendly to the environment.)  
See also our arti
cle,"6 Ways to Shrink Your Carbon Footprint," and tweet out how many you already do.  

Source: wnyc.org

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