urban heat island
illconsidered | October 29, 2008Anthony Watts has a post up purporting to show a very large UHI effect in Reno, Nevada.
I will just take his numbers and methods at face value, even though many questions come to mind. After all, 10oF is a big jump from outskirts to downtown, but maybe that is correct and not contaminated from engine heat. Also note this, which is specifically about Reno and shows how the UHI effect is removed from the data.
(pretty convincing, no?)
The problem is the conclusion that is at the very least strongly implied: if Urban Heat Islands are that pronounced, maybe global warming is just an artifact…
illconsidered | February 25, 2006This is just one of dozens of responses to common climate change denial arguments, which can all be found at How to Talk to a Climate Sceptic.
Objection:
The surface temperature record is so full of assumptions, corrections, differing equipment and station settings, changing technology, varying altitudes and more. It is not possible to claim we know what the "global average temperature" is, much less determine any trend. The IPCC graphs only say what the scientists want them to say.
Answer:
There is actually some truth to the part about the difficulties, there are many of them that…