EU Allowance (EUA) is the official title of the carbon credits or pollution permits traded in the EU Emissions Trading Scheme (ETS).
Each EUA represents one ton of CO2 that the holder is allowed to emit.
Allowance units are freely allocated or auctioned to members of the EU ETS and can then be sold or purchased through the carbon market.
Firms within the scheme must surrender EUAs equivalent to their emissions at the end of each compliance period. Those businesses that emit more carbon than their cap have to purchase extra EUAs, while those that manage to reduce theior carbon emissions below their cap are entitled to sell their excess EUAs.
Parliament's Environmental Audit Committee urges government to provide certainty over future of EU chemicals regulations post-Brexit
UK government backs tougher limits, which could prevent 20,000 premature deaths across the EU
Most of those working for large US companies expect their CEO to be vocal about environmental and social issues, according to new research, and when it comes to the issues they care about most, renewable energy trumps immigration
Coalition frontbencher calls for Queenslanders to boycott Australia's second-largest bank after it says it will now only lend to mines in established coalfields