Carbon Footprint - The total greenhouse gas (GHG) emissions caused directly or indirectly by a person, organization, event, or product. It is calculated by adding up the emissions from every stage of a product or service's life cycle (material production, manufacturing, use, and end-of-life). Throughout a product's service life or life cycle, different greenhouse gases such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), each with varying abilities to trap heat in the atmosphere, can be emitted. https://css.umich.edu/publications/factsheets/sustainability-indicators/carbon-footprint-factsheet

Carbon Neutral - It was selected as the word of the year in the New Oxford American Dictionary in 2006. It means to balance the greenhouse gases released into the atmosphere as a result of activities carried out and to have zero emissions. https://sustainable.org.nz/learn/tools-resources/glossary-of-sustainability/