To avoid future language mistakes I'll be writing in dutch from now on :)

So what I meant to say was:

There are only two possibilities:

- we have an effect on the environment

- we do not have an effect on the environment

Since it is trivially simple to prove that we have are having an effect on the environment the remaining task is to measure how our effect on our environment translates into an effect on the climate and what direction and magnitude that effect is.

I hope that is more clear to you, sorry for causing you distress :)