The biggest thing here is that a group (that by all measures would be skeptical and biased against the data) has come out in agreement with the results and conclusions of the original consensus.

Ultimately it’ll never “prove” global warming is man-made to people who refuse to accept it. But it does give more ammo to the critical middle that something is happening, and humanity’s actions are at least partially responsible for it.

That’s huge in the court of public opinion. And serious kudos to them for going ahead and admitting that they were wrong about any human bias on the results.