Nir Shaviv shows why climate change is not an existential threat

 Here is a link to a talk by Nir Shaviv on climate change.  NS is a top level theoretical physicist.

NS shows why the climate change models you hear about are GIGO (garbage in - garbage out).

As a corollary, you can now use NS's insights to discriminate between credible and not-credible people.  You can classify people as "not credible" if they rail against "climate deniers" or are highly confident that climate change is an existential threat.  That goes for scientists and academics, too.