Claims that man-made pollution is causing "unprecedented" global warming have been seriously undermined by new research which shows that the Earth was warmer during the Middle Ages.
Well I believe we have to be conscious on how we treat the enviroment, I've also found it odd how we people thought we an accurate view of weather patterns to declare we were causing the "Global Warming" pattern. We've only had reliable recorded weather data for the past 90 years or so (and you could debate that it's even that long.) Any real data analyst would tell you that that's nowhere near long enough data to accurately report a trend. The bottom line is we don't really know enough about weather patterns to acculate perdict what's going on.