/sci/ - Science & Math

So one of my professors claims the proof for global warming is bullshit because the temperature figures given are taken from inside cities where temperature has increased because of larger buildings concrete etc and that if you look at locations even 30 miles outside the cities the figures are much more constant. And if you look at temperature samples from northern Canada, shetland and other polar locations over the past 100 years (the region that should warm first) there is little variation.