The European Union now has its first Climate protection law in place. The new law is a commitment to reduce CO2 emissions by 55% by 2030 and to reach climate neutrally by 2050. This makes them the only party at the climate summit tomorrow to have a law in place which sets a concrete target for the reduction of CO2 emissions.
Sources
https://www.youtube.com/watch?v=ui1AQ4DjIIA
https://apnews.com/article/eu-major-climate-deal-ahead-biden-summit-4685d734b48fc73cce63806351103e2e
Putin has announced that Russia plans to reduce its CO2 emissions even more. https://newsquickie.net/2021/04/21/vladimir-putin-warns-the-west/