In 2025 the world's top emitters of CO2 are China, Russia, US, India & the EU. Since in 2025 all of the top emitters except the EU have shifted back to the use of coal. If the EU ceased to exist, and therefore there were no emissions at all from the EU how long would it take for CO2 emissions from the top 4 emitters to eclipse the emissions reductions of the EU not existing at all?

If the EU ceased to exist and there were no emissions from the EU, it would take approximately 1.4 years for the CO2 emissions from the top 4 emitters (China, Russia, US, India) to surpass the emissions reductions of the EU not existing. This estimation is based on the current emissions from these countries and the estimated emissions from the EU.

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