Greenhouse gas emissions in the UK, by gas and sector 2021
The transportation sector is the largest source of greenhouse gas emissions in the United Kingdom, followed by the energy supply sector. Carbon dioxide is the primary greenhouse gas emitted by these sectors, whilse methane is the most produced greenhouse gas in sectors such as agriculture and waste management. The energy supply was once the biggest contributor to greenhouse gas emissions in the UK, but due to emission reductions it was surpassed by the transportation sector in 2016.
