The La Nina and Global Cooling

Here.



Was that late '70s to late '90s warming really caused by changes in a trace atmospheric gas?

Would anyone be bummed out if we spent $20 trillion in an attempt to "stop climate change", only to find no measurable change in these blue and red cycles?

If we paid Al Gore $100 million for "carbon credits" and then saw no measurable benefit, would we get a full refund plus interest?