I believe the OP is referring to historical contribution to climate change by different countries. There's an article about this on Our World In Data: Who has

I believe the OP is referring to historical contribution to climate change by different countries. There's an article about this on Our World In Data: Who has contributed most to global CO2 emissions? >> There’s not only significant variability in how much CO2 countries emit across the world today. There are also large differences in how much each has emitted in the past. Who has contributed most to global CO2 since 1750? https://ourworldindata.org/contributed-most-global-co2 https://ourworldindata.org/contributed-most-global-co2 The graph at the top of the article makes it clear that, historically, the regions that have contributed the most to climate change (to make it plain: the countries directly responsible for it) are the US and the EU countries. The US alone has contributed as much CO2 as all Asian countries together. That doesn't mean Asia will suffer less than anyone else from a changing climate, but pointing the finger at China as the biggest polluter is kind of missing the point, and probably an attempt to deflect responsibility to avoid doing what must be done (edit: not by you, obviously).