In 2019, Britain became the first major world economy to legislate for net zero emissions, aiming to end the UK’s contribution to global warming and climate change by 2050. This commitment sought to align with the Paris Agreement, signed by 196 countries at the UN’s 2015 COP-21 conference in Paris, which agreed to limit the global temperature rise to 2 degrees, and preferably no more than 1.5 degrees.