自1990年以来，英国的温室气体排放量突破了51％，国家是削减了一半根据网站碳简介，其二氧化碳排放量为2050〜2050。
美国的二氧化碳排放量较为下降了11％，大部分是由于Covid-19大流行的经济活动减少。但碳简介报道，即使没有这种陡峭的下降，U.K.在“净零”碳排放的路上也很好。事实上，去年在维多利亚女王统治期间自1879年以来的最低水平。并在人均基础上，去年全国的碳排放量与1853年一样低，碳简介说。
The sharp drop in greenhouse gas emissions in recent decades is largely due to the near-disappearance of coal as a source of electricity and the rapid rise of renewable energy in the U.K. Last year, for the first time, more electricity was generated from renewables — 43 percent of the power supply, up from 2 percent in 1990 — than from fossil fuels. Much of that green energy comes from the rapid expansion of wind power, which saw an 18 percent jump in power generation from 2019 to 2020 and now accounts for 25 percent of the country’s electricity supply.
与此同时，煤炭差不多死了。1990年，煤炭占U.K.发电的三分之二。现在，煤炭占全国电力的1.6％，在2020年的近一半的日子里，没有煤炭被烧毁，以发电，碳简介报道。
Overall, U.K. emissions fell from 794 million tons of CO2 equivalent in 1990 to 389 million tons in 2020. Per capita CO2 emissions in the U.K. are now 4.5 tons, which is less than two-thirds the per capita emissions in the U.S. and is 40 percent lower than per capita emissions in China.
