Which one of the following statements best describes the term 'Social Cost of Carbon'? It is a measure, in monetary value, of the

The term 'Social Cost of Carbon' (SCC) is an economic metric that attempts to quantify the full societal costs of emitting an additional tonne of carbon dioxide (CO2) into the atmosphere at any given time. It represents the monetary value of the total damage caused by that tonne of CO2 over its entire lifetime in the atmosphere, including impacts such as: Changes in agricultural productivity and food security Human health impacts (e.g., respiratory diseases, heat stress) Coastal property damage from sea-level rise Loss of ecosystem services and biodiversity Increased frequency and intensity of extreme weather events Disruption of water resources The SCC is a critical tool used by policymakers to evaluate the economic benefits of policies that reduce greenhouse gas emissions. Option A accurately captures this comprehensive, long-term, monetary valuation of climate change damages associated with each unit of CO2 emitted. The other options describe different, related but distinct, concepts: B refers to national fossil fuel consumption, C refers to adaptation costs for climate refugees, and D refers to an individual's carbon footprint.