The UK government had pledged to achieve net-zero greenhouse gas emissions by 2050, and in April 2021, it even strengthened its commitment by aiming for a 78% reduction by 2035 compared to 1990 levels. This was a significant increase from the previous target of a 68% reduction by 2030. This was considered one of the most ambitious targets among developed nations.
However, setting ambitious targets is one thing, and making actual progress in achieving them is another. By 2021, the UK had made substantial progress in certain areas like the shift to renewable energy, but challenges remained in other areas such as housing and transportation.
Comparatively, different countries had varying levels of commitment and success in addressing climate change. For instance, the European Union had also set a goal to be climate-neutral by 2050, and aimed to reduce greenhouse gas emissions by at least 55% by 2030 compared to 1990 levels.
Meanwhile, the United States under the Biden administration had committed to reducing its net greenhouse gas emissions by 50-52 percent below 2005 levels by 2030. However, the actual progress of these and other countries can vary greatly based on a wide range of factors, including but not limited to political commitment, policy implementation, technological advancement, and public support.