Voluntary Market

Joint declaration from EU member states and other nations reveals strong support for market-based scheme to limit aviation emissions

A deal to offset growth in aviation's carbon emissions post-2020 could start as a voluntary scheme, sources suggest

Annual survey of IETA members suggests continued optimism over impact of Paris on expanding carbon markets, but concern remains over low prices

New company launched to capitalise on increasing demand from corporates to account for unavoidable emissions

Rise in offsetting takes volumes purchased to $576bn and helps avoid downward price trend seen in EU markets

Carbon Lottery calculates your emissions, and offers £2 offset tickets and a chance to win €4m. Do you feel lucky?

Uncertainty over Copenhagen leads to slow trading week

Offset market quiet as expectations grow that US climate bill will be delayed

Prices largely unchanged as voluntary carbon market continues tentative recovery

Long-running acquisition saga approaches its end as board accepts £129m JP Morgan offer