World Conference on Climate Change & Sustainability 2026

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Glossary

1

Adaptation

Adjusting systems, infrastructure and communities to withstand climate impacts such as flooding, heat and sea-level rise. Adaptation sits alongside mitigation on most Climate Week agendas, with sessions on resilience planning and finance.

2

Carbon credit

A tradable unit representing one tonne of carbon dioxide equivalent reduced or removed. Buyers at climate events compare credit quality, verification standards and how credits fit corporate net-zero claims.

3

Decarbonisation

The process of reducing carbon dioxide emissions from energy, industry, transport and buildings. It is the core theme of most Climate Week tracks, spanning electrification, efficiency and clean fuels.

4

ESG

Environmental, social and governance criteria used by investors and corporates to assess sustainability performance and risk. ESG reporting frameworks are a frequent discussion point for delegates.

5

GHG Protocol

The widely used accounting standard for measuring and reporting greenhouse gas emissions across corporate value chains. It underpins the Scope 1, 2 and 3 categories that many presenting companies reference.

6

Just transition

Planning the shift to a low-carbon economy so that workers and communities dependent on high-emitting industries are supported. It links climate policy with social and employment outcomes.

7

Mitigation

Actions that reduce the sources of greenhouse gases or enhance their sinks, such as renewable energy deployment, efficiency and carbon removal. Mitigation is distinct from adaptation.

8

Net zero

A state where the greenhouse gases emitted are balanced by those removed from the atmosphere. Corporate and city net-zero targets usually include interim milestones and disclosure requirements.

9

Nature-based solutions

Projects that use ecosystems, such as forests, wetlands and coastal habitats, to store carbon, manage water and build resilience. They are frequently discussed in land-use and blue-carbon sessions.

10

Scope 1, 2 and 3 emissions

The GHG Protocol categories for direct emissions (Scope 1), purchased energy (Scope 2) and value-chain emissions including suppliers and customers (Scope 3). Scope 3 is usually the largest and hardest to measure.

11

Climate finance

Public, private and blended capital directed at mitigation and adaptation. At Climate Week it covers green bonds, transition funds and the financing gap for emerging markets.

12

Blue carbon

Carbon captured and stored by coastal and marine ecosystems such as mangroves, seagrasses and salt marshes. It appears in ocean and nature-focused programme tracks.

13

Green hydrogen

Hydrogen produced using renewable electricity. It is discussed as a decarbonisation route for heavy industry, shipping and long-distance transport.

14

Carbon offset

A reduction or removal of emissions used to compensate for emissions made elsewhere. Quality, additionality and permanence are the common scrutiny points raised by delegates.