A carbon footprint is a measure of the impact our activities have on the environment, and in particular climate change. It relates to the amount of greenhouse gases produced in our day-to-day lives through burning fossil fuels for electricity, heating and transportation etc.
A carbon footprint is usually expressed in equivalent tonnes of carbon dioxide. In other words, when you drive a car, the engines burns fuel which creates a certain amount of carbon dioxide gas, depending on its fuel consumption and driving distance.
A carbon footprint is made up of the sum of two parts, which are the primary footprint and the secondary footprint. The primary footprint is a measure of our direct emissions of carbon dioxide from the burning of fossil fuels including domestic energy consumption and transportation. For example, car and plane. The secondary footprint is a measure of the indirect carbon dioxide emissions from the whole lifecycle of the products we use. Products with more packaging will generally have a larger secondary footprint than products with a minimal amount of packaging. To put it very simply, the more we buy, the more emissions will be caused on our behalf.
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