If you're in the US, that's not true. India emits less than US. India emits 3 billion tons of CO2 a year. USA emits 5 billion.

Now that we've sorted out the facts, let's talk philosophy. You're arguing that we should take actions that prevent climate collapse instead of worrying about borders and blame. I agree. So worry about the political processes that you have the power to participate in. You can't vote in Chinese elections. You can't vote in Indian elections. You can vote in your country's elections, so worry about those.

The alternative is that America does nothing because China won't do anything, and China does nothing because America won't do anything. You're just playing chicken. And what's the prize for winning? Nothing. What happens if you're both stubborn? Everyone and everything dies.

The shrimp don't care whose fault it is that they all died. They just want to live. Every gram of CO2 we don't emit could mean one more shrimp lives for one more day, and the total chance of climate collapse ticks down by one trillionth of a percent.