Because the first step to doing something about climate change is believing it exists.
And would admit clearly that it is something we can change and start promoting policies that help move society in the right direction. Instead they are censoring themselves and the organization is all but toothless.
https://time.com/5075265/epa-website-climate-change-censorsh...
So yea things would be different.
It's not obvious what you want to say, but the Paris agreement would have been a piece of cake if we had taken responsibility.