The Independent has a calculator that will ask you a series of questions, do some magical math, and tell you your impact on the globe. The questionnaire is Europe based so for the US based readers answer the Europe questions as if the question was about the US (travel domestic and international). Also for the monetary ranges, just assume that 1 US dollar is equal to 1 pound. What’s your planetary impact?
For the record, I was 4 planets.
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