2. The Energy Sector is the Biggest Greenhouse Gas Emitter, but Action in Every Sector Counts The world cannot successfully fight climate change without significant action from the top 10 emitters. Collectively, the top 10 emitters account for over two-thirds of global GHG emissions. The top three greenhouse gas emitters - China, the European Union and the United States - contribute 41.5% of total global emissions, while the bottom 100 countries only account for only 3.6%. Our Climate Watch interactive chart explores GHG emissions by country and economic sector 1, and shows how top emitters have changed in recent years: 1. The World’s Top Three Emitters Contribute 16 Times the Greenhouse Gas Emissions of the Bottom 100 Additionally, 19 countries - including United States, Japan, Canada, Germany and Mexico - also developed long-term plans to decarbonize their economies.Īs countries implement their targets and policies and develop more detailed pathways to reduce their greenhouse gas (GHG) emissions, it’s important to fully understand the global emissions picture and how it changes over time. So far, more than 189 countries ratified or otherwise joined the Paris Climate Agreement, representing more than 81% of global greenhouse gas emissions and 93% once the United States rejoins. A lot has happened since countries met in Paris in 2015 and agreed on an accord to combat climate change.
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