Glossary

- is the sum of emissions of various gases like carbon dioxide, nitrous oxide etc

Greenhouse gases, or GHGs, are compound gases that trap heat or longwave radiation in the atmosphere. Their presence in the atmosphere makes the Earth's surface warmer. Sunlight or shortwave radiation easily passes through these gases and the atmosphere

- is about “using the tools of budgetary policy-making to help achieve environmental and climate goals”, including “evaluating environmental impacts of budgetary and fiscal policies and assessing their coherence towards the delivery of national and international commitments”(OECD).

- hydrogen generated by renewable energy or from low-carbon power. Green hydrogen has significantly lower carbon emissions than grey hydrogen, which is produced by steam reforming of natural gas, which makes up the bulk of the hydrogen market. Green hydrogen produced by the electrolysis of water is less than 0.1% of total hydrogen production. It may be used to decarbonize sectors which are hard to electrify, such as steel and cement production, and thus help to limit climate change.

- is any gas that has the property of absorbing  heat energy) emitted from Earth’s surface and reradiating it back to Earth’s surface