"But if you look at the long term trend, the current climate has not deviated at all out of it.
A lot of weather stations are in highly urbanized centres. Have a look in Melbourne where it is now , close to the Royal Society building, surrounded by concrete, buildings and cars flying past. Do you think 100 years ago that area would have been cooler with paddocks around it and dirt roads and horses riding past?"
I'm not sure you understood what I posted? Yes, you would expect cities to be cooler 100 years ago than they are today.
Are you saying that you think the warming experienced over the last 100 years is entirely due to urbanisation? If so, thanks for the speculation but I think I'll believe the people who have studied the issue and quantified the effect to be much smaller than the overall warming.
