Now I’m not siding with the proponents of Global Warming (a.k.a. Al Gore), but to be honest, their claims are that the weather has increased a few degrees in recent times. This explains how we can still have cold winters.
Although 2-3 degrees farenheit doesn’t mean much to us here, it actually has enormous weight near the Poles, where melting glacial masses as a consequence of Global Warming may mean increasing high tides and flooding for coastal cities worldwide in the not-so distant future.
Just saying, not siding with those people.