
Retirement of a carbon credit or offset represents its “use” to counterbalance emissions that take place elsewhere. Once retired, a carbon credit can no longer be traded or retired again.

Retirement of a carbon credit or offset represents its “use” to counterbalance emissions that take place elsewhere. Once retired, a carbon credit can no longer be traded or retired again.
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In the context of economics, an externality is a consequence of a business or industrial activity that affects third parties but which is not reflected in market prices.
CO2 emissions from the industrial sectors led to a year-on-year drop in 2025 under the EU Emissions Trading System, according to verified European Commission figures released in April.
Refers to sectors in which greenhouse gas emissions are difficult to reduce. Includes industries such as iron and steel, cement, refining, chemicals, shipping, aviation and heavy duty trucks.
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