No that's not true, and it's another tiresome argument based on first order armchair logic sans application of actual subject related experience/knowledge.

Environmental diplomacy is hard, and made much harder by the fact that most tools to stop pollution require such massive cuts to industrialization (and western pollution first) that most countries can't afford to enact what is needed.

So we have had the weak predecessor of Kyoto, and then the even weaker Kyoto protocol. Which has been followed by nothing.

This just means that people are willing to play the game of lying to their populations and voters, who can't care or understand the issues because they have other existential problems to deal with.

Distributed responsibility is another name for "not my problem".