The 2023 Berlin climate neutrality referendum, also referred to as Berlin 2030 climate-neutral (German: Berlin 2030 klimaneutral), was a citizens' initiative launched in Berlin in 2018. It was the subject of a city-wide referendum on 26 March 2023, commonly called the Klima-Volksentscheid (English: climate referendum). Voters were asked whether the Climate Protection and Energy Transition Act of 2016 should be amended. The primary goal of the referendum was to legislate a goal of carbon neutrality by the year 2030 rather than the existing goal of 2045. Since the referendum proposed specific amendments to the law, its result would have been legally binding. In order to pass, the proposal needed to be approved by a majority of voters and receive approval from a quorum of over 25% of registered voters.[2] While 50.9% of those who participated voted in favour, as turnout was approximately 18%, the 25% quorum was not met.[3]