Switzerland's annual greenhouse gas emissions in 2016 were just under ten percent lower than in 1990, despite the fact that the country's population rose by over 1.5 million during the same period. Per-capita greenhouse gas emissions stood at around 5.7 tonnes in 2016. Two of the main reasons for the reduction have been structural change in the economy, and more efficient buildings. As a member of the UN Framework Convention on Climate Change, Switzerland must report its greenhouse gas emissions on an annual basis and document them comprehensively in its National Inventory Report. INRAS was commissioned by the Federal Office for the Environment to act as lead author of this report.