> We use data + research from Berkeley's cool climate lab (https://coolclimate.berkeley.edu/publications) The main model is maintained by them, and is based on linear regression from a bunch of lifestyle variables that you input into the calculator. Our version is slightly different because we base it on country instead of zip code, so we scale most input variables by the country's per capita emissions to get a good estimate.

Some of the data might be a little tricker to find but most of it is based off of Cool Climate's model + World Bank per capita emissions data. Let us know if we can help with anything here!