It would be much more helpful if you would look things up before posting, as this post is way off. The US far exceeds greenhouse gas emissions, per capita, than China and India.
The U.S. has the 13th highest per capita emissions at 13.68 tons, while China is 28th (8.20), and India is 110th with a mere 1.74 tons per capita.
I also would love to see leaders and the wealthy practice what they preach more, but large reductions in greenhouse gases (or even just stopping their increases) will only come with improving efficiency, conservation and alternative energy sources, as well as societal changes in behaviors (meaning everybody). To effect any of these, we need changes in how corporations and governments work, including providing funding and focus for many of these efforts.
https://worldpopulationreview.com/country-rankings/carbon-footprint-by-country