published in air
The carbon footprint
The carbon footprint measures the impact of human activities on the environment and in particular on climate change. It represents the quantity of greenhouse gas produced during daily activities, burning fossil fuels to produce energy. The carbon footprint is measured in kilos, and the reference for all greenhouse gases is carbon dioxide (CO2). A carbon footprint is the sum of two parts, the primary footprint and the secondary footprint.
1. The primary carbon footprint is the direct measure of CO2 emissions produced by fossil fuels used for the production of electric energy, for heating and for transportation.
2. The secondary carbon footprint is the indirect measure of CO2 emissions produced by the entire life-cycle of the products we use, emissions that are tied to the production and final consumption of a product.