Except we can't directly/ immediately alter the global temperature, whereas we can alter emissions rates. If we bring them down to net zero quickly the planet w

Except we can't directly/ immediately alter the global temperature, whereas we can alter emissions rates. If we bring them down to net zero quickly the planet will be warmer than it was 100 years ago but still at a temperature that's safe enough for humans to thrive in (though maybe not many other species, particularly corals etc.). And yes, we'll probably need to resort to some form of geo-engineering to further reduce CO2 levels and/or temperatures, but for now measuring emissions is the best way we have of monitoring to what degree we're doing enough to stave off a catastrophic future.