Global Voting: Good Idea or Bad?

The effects of pollution of all types are uncontrollable, and global at scale. Since global superpowers are in control of the health and well being of every human and life form on the planet - Voting should not be restricted to just the population that resides within that sovereign nation. Each nation able to participate in the global market, should be allowed to vote on a weighted scale for the leaders and laws governing nations outside each others borders.

Whoever wins the 2024 election in the US, wins the futures of untold numbers of people AROUND THE WORLD. Why shouldn't France get a vote?