Comment by anthonyb

Ok, so overlooking that SPPI are a notorious denier hack site, how do you explain the correlation between surface temperature records and satellite temperature records, both of which show an increase? Also, how do you explain the strong correlation between the temperature trends (ie. increase in temperature) between urban and rural areas? See http://www.skepticalscience.com/surface-temperature-measurem... and http://www.skepticalscience.com/urban-heat-island-effect-int... for details/pretty graphs.

Btw, that argument is #6 in the list of common denier arguments http://www.skepticalscience.com/argument.php

> In the field of science a healthy level of scepticism is required

Scepticism is fine, but the level of scepticism needs to be in proportion to the level of data available. The bulk of the data available strongly indicates that global warming is real, and is caused by humans. Which is why people who don't believe in global warming are now called 'deniers' - they're not really skeptics.