What is the UK Climate Change Act? The UK Climate Change Act 2008 was the first legally binding climate change act worldwide that commits the UK to reduce its carbon dioxide emissions by 80% by 2050 from 1990 levels. Under the Act, the UK government must produce binding emission targets (Carbon Budgets) every five years. An Independent Committee on Climate Change was created under the Act to advise the UK government on these targets and potential policy options. Since 2008, five carbon budgets have been implemented which currently run up to 2032. Find out more.