The institution of the European Union where ministers from the member states meet to adopt laws and coordinate policies. It shares legislative and budgetary powers with the European Parliament.

Gasses in the atmosphere, such as carbon dioxide and methane, that trap heat from the sun, contributing to the greenhouse effect and global warming.

The yearly limit set on the total amount of greenhouse gas emissions that can be produced by entities covered by the Emissions Trading System. The limit is reduced every year at a predetermined rate, currently at 4.3%.