Great, please state your expertise in these matters.
The issue here is you have a large number of people in the hacker news 'community' who are domain experts with insufficient humility. While it's great to be informed, essential in fact to engage with a useful conversation about public policy - it's ludicrous to get ideological about areas of scientific knowledge in which one is a layman. If the consensus is, based on UNEP, IPCC etc, that we're going to see the deaths of at least hundreds of millions, the loss of major sea fronting cities and a likely systems collapse of our civilisation... Then mannered critiques of policy outcomes read like defences of appeasement in 1939. Buffoonery masquerading as serious engagement with reality.