Legally binding targets to reduce emissions - 37 industrialised states and the EU, reduce emissions by 5%, Brazil, China, India, Russia and South Africa (BRICs) granted exemption so the US rejected the treaty, states submitted reports to the UN to monitor progress, first commitment period ended in 2012 (came into force 2005) and the second is 2020, EU reduced emissions by 8%, EU created carbon emissions trading scheme, 37 countries pledged to be stricter on emissions during the second commitment period and reduced their emissions by 25%