Which one of the following statements best describes the term ‘Social Cost of Carbon’?

Long-term damage done by a tonne of CO2 emissions in a given year.

Requirement of fossil fuels for a country to provide goods and services to its citizens, based on the burning of those fuels.

Efforts put in by a climate refugee to adapt to live in a new place.

Contribution of an individual person to the carbon footprint on the planet Earth.