It could be argued that we've been making collective decisions for progressively larger groups as time goes by. We have the Comprehensive Nuclear-Test-Ban Trea

It could be argued that we've been making collective decisions for progressively larger groups as time goes by. We have the Comprehensive Nuclear-Test-Ban Treaty[1], and the Montreal Protocol[2], for example. 1. https://en.wikipedia.org/wiki/Comprehensive_Nuclear-Test-Ban_Treaty https://en.wikipedia.org/wiki/Comprehensive_Nuclear-Test-Ban... 2. https://en.wikipedia.org/wiki/Montreal_Protocol https://en.wikipedia.org/wiki/Montreal_Protocol