Carbon Footprint Factsheet | 社區大學終身學習網
![Carbon Footprint Factsheet](https://i.imgur.com/1IaoGs0.jpg)
“Acarbonfootprintisthetotalgreenhousegas(GHG)emissionscauseddirectlyandindirectlybyanindividual,organization,eventorproduct.
![Carbon Footprint Factsheet](https://i.imgur.com/1IaoGs0.jpg)
“A carbon footprint is the total greenhouse gas (GHG) emissions caused directly and indirectly by an individual, organization, event or product.”1 It is calculated by summing the emissions resulting from every stage of a product or service’s lifetime (material production, manufacturing, use, and end-of-life). Throughout a product’s lifetime, or lifecycle, GHGs may be emitted, such as carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O), each with a greater or lesser ability to trap heat in the atmosphere. These differences are accounted for by the global warming potential (GWP) of each gas, resulting in a carbon footprint in units of mass of carbon dioxide equivalents (CO₂e). See the Center for Sustainable Systems "Greenhouse Gases Factsheet"for more information on GWP. A typical U.S. household has a carbon footprint of 48 metric tons (t) CO₂e/yr.2[1]
Sources of Emissions Food (See U....Carbon footprint | 社區大學終身學習網
Carbon Footprint Calculator | 社區大學終身學習網
Carbon Footprint Calculator | 社區大學終身學習網
Carbon Footprint Factsheet | 社區大學終身學習網
carbon footprint | Definition, Examples | 社區大學終身學習網
carbonfootprint.com | 社區大學終身學習網
Climate Change & the Carbon Footprint | 社區大學終身學習網
How to Reduce Your Carbon Footprint | 社區大學終身學習網
What is your carbon footprint? | 社區大學終身學習網
![](https://i.imgur.com/1IaoGs0.jpg)
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