I visited Google and saw a number of articles beginning with “OEDC countries,” with no explanation of what they were talking about.  I figured OEDC was such common knowledge that I must be a dummy not to know.

Seems it was otherwise.  More specifically on Google  I learned that The Organization for Economic Co-operation and Development (OECD) is a unique forum where the governments of 37 democracies with market-based economies collaborate to develop policy standards to promote sustainable economic growth.  Non-OECD countries are called developing economies or modernizing economies. https://energyeducation.ca/encyclopedia/OECD#:~:text

China has been an OECD Key Partner since 2007, alongside Brazil, India, Indonesia and South Africa. Since embarking on a programme of dialogue and co-operation with China in 1995, the OECD has contributed to policy reform in China through the sharing of policy experience.  I’m unsure about the count list of member countries, since in one post the U.S. refers to the OECD’s number as “democracies,” yet Russia and China–and I don’t know what other countries would not be considered democracies. Incidentally, not surprisingly it appears the largest countries are not in favor of any international enforceable climate change laws, although its [“our”] response was more than 100 pages long.