What we (don't) know about global warming

Paul Murphy posts on WUWT, concluding that

what we know about global warming is pretty much nothing: we’ve no baseline, so don’t know if it’s happening; we’ve no cost/benefit evaluation so don’t know whether it would be net positive or net negative; if it is happening we don’t understand its causation and if it isn’t we don’t understand why not; so really the only thing we’re pretty sure of is that the people jumping up and down screaming that they have the answers are either deluded or charlatans.

That sounds about right. Plenty in the post that quotable, it's all worth reading.

Over on EU Referendum, Richard North quotes a Met Office scientist on the recent snowfalls (notice them?):

This is not a global event; it is very much confined to the UK and Western Europe and if you look over at Greenland, for example, you see that it's exceptionally warm there.

Oops, they're having some snow now in the US too.

She must never be allowed to get away with pleading Greenland.

Did we not read recently that Greenland has a grand total of two temperature measuring points, both in Nuuk, one at the airport, the other also in what's become a built up area? Urban heat island, anyone?

And why only two stations for such a big land mass if the consequences of this global warming are going to be so serious?

Did she just happen to choose Greenland as her example?