Short answers, pulled from the story.
Almost 40% of global electricity generation came from low-carbon sources in 2020. That share broke down to roughly 10% nuclear, nearly 10% wind and solar combined, and around 20% hydropower and other renewables.
Coal-fired power generation accounts for 18.8% of all world greenhouse gas emissions. That is nearly double the share produced by road transportation.
The Kyoto Protocol entered into force on the 16th of February 2005. Under the agreement, most industrialized countries committed to reducing their carbon emissions.
Nuclear power provided 47% of low-carbon electricity in the EU as of 2020. In 2010, it supplied two thirds of the EU's low-carbon energy; France alone derived 79% of its electricity from nuclear at that time.
Plans were made to sequester 171 million tonnes of CO2 per year via CCS at coal and gas plants. By 2021, over 98% of those plans had failed; as of 2024, CCS operates at only five power plants worldwide.
Hydroelectric power is the world's largest low-carbon source of electricity, supplying 15.6% of total global electricity in 2019. China is the world's largest producer of hydroelectricity, followed by Brazil and Canada.