The key answer of exercise 2

A carbon footprint refers to the total amount of greenhouse gases, specifically carbon dioxide (CO₂) and other carbon compounds, that are emitted directly or indirectly by an individual, organization, event, or product throughout its lifecycle. It is usually measured in equivalent units of carbon dioxide (CO₂e) to account for the varying global warming potentials of different greenhouse gases.

The carbon footprint includes emissions from various activities, such as energy consumption, transportation, manufacturing, and waste generation. Individuals, businesses, and governments assess and track their carbon footprints to understand their impact on climate change and identify opportunities for reducing emissions.

Reducing one's carbon footprint often involves adopting sustainable practices, such as using renewable energy sources, energy-efficient technologies, reducing waste, and making environmentally conscious choices in daily activities. The goal is to minimize the contribution to the accumulation of greenhouse gases in the atmosphere, thereby mitigating climate change and promoting environmental sustainability.