What is ""kolefnisspor"" in American English and how to say it?

Icelandic

kolefnisspor

kolefnisspor-carbon footprint.svg
American English

carbon footprint

Learn the word in this minigame:

Example sentences

American EnglishEmissions of carbon dioxide will change over the next 100 years.

How ""kolefnisspor"" is said across the globe.

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