[kingu]

So what was the dominate reason for being able to ice skate on the river in London at the turn of the 20th century?

Humans caused global cooling then caused global warming?

I'll give them one thing though; humans are the sole reason for the increased temperatures measured globally. Time and time again you can look at 1930’s photos of weather stations in the middle of a field and then see today's image of it sitting right next to a black asphalt parking lot.

I mean, if you're going to discount outright false readings by limiting the lower temperatures at weather stations like in Australia.

Humans put in those lots, not nature.

[ought-six]

Global warming is a fact, because if it were not then Illinois would still lay beneath a mile of ice.