Evidence was faked, dissenting evidence was covered up.
What this has come down to is what this was always about: more control over the economy.
From the article:
“UN calls for higher taxes to combat climate warning
A top UN panel on Friday called for increased taxes on carbon emissions and international transport to raise 100 billion dollars a year to combat climate change.
The group led by the prime ministers of Norway and Ethiopia also said there could be a tax on international financial transactions. “