Carbon Footprint - Total greenhouse gas (GHG) emissions caused directly or indirectly by a person, organization, activity or product. It is calculated by summing the emissions from each stage of the life of a product or service (material production, manufacturing, use and end-of-life). Over the lifetime or life cycle of a product, different GHGs such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) can be emitted, each with a greater or lesser ability to trap heat in the atmosphere. https://css.umich.edu/publications/factsheets/sustainability-indicators/carbon-footprint-factsheet

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

Global Warming - The long-term warming of the Earth's surface observed since the pre-industrial era (between 1850 and 1900) due to human activities, particularly fossil fuel burning, which increases the levels of heat-trapping greenhouse gases in the Earth's atmosphere. https://climate.nasa.gov/global-warming-vs-climate-change/