Externalities

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. A ‘negative externality’ is when those consequences cause harm, for example the damage caused by a changing climate, driven by the CO2 released from the combustion of fossil fuels, or the damage to human health caused by local air pollutants released from combustion processes.

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LATEST GLOSSARY

Airbnb’s direct greenhouse gas (GHG) emissions come from its own offices, while indirect emissions come from the energy it consumes, and from upstream and downstream
Carbon Capture, Utilisation and Storage (CCUS) is a method of reducing carbon dioxide emissions by trapping the gas for industrial use or permanent storage, preventing
A type of carbon offset project that protects forests against deforestation or degradation, and thereby earns carbon credits by reducing emissions compared...
On 15th July the European Commission will present its proposals for overhauling the EU Emissions Trading System (EU ETS), the most significant regulatory event since
Explore how ‘standards’ establish thresholds and benchmarks that help to measure CO2 reductions, avoidances or removals achieved by carbon projects, produced in collaboration with Verra.

14 July 2026

GLOSSARY
REDD+

A type of carbon offset project that protects forests against deforestation or degradation, and thereby earns carbon credits by reducing emissions compared...

30 June 2026

HIGHLIGHT
Carbon Crunch: What to Expect from the Coming EU ETS Review

On 15th July the European Commission will present its proposals for overhauling the EU Emissions Trading System (EU ETS), the most significant regulatory event since the ‘Fit-for-55’ package was launched in...

25 June 2026

VIDEO
The Life Cycle of a Carbon Credit

Explore how ‘standards’ establish thresholds and benchmarks that help to measure CO2 reductions, avoidances or removals achieved by carbon projects, produced in collaboration with Verra.

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