We do have an idea what is happening, CO2 is a greenhouse gas and we have increased the level by 40% and this will increase the heat retention capacity of the atmosphere. If nothing else changes then the earth will warm, causing climates to change. Seems simple enough even a skeptic like me can understand it.
Predicting what the changes are going to be is a bit harder and I will leave that to the experts rather then to alarmist/deniers. I don't think a single weather event like wind causing drift ice trapping ships or a cold snap as proof for or against global warming. A change in trends would be proof and from what I understand, for that there is not sufficient data when it comes to the cold snap
I would tend to doubt it. There is a slight possibility. If there is a negative feedback, cold weather could be due to overshoot.
http://en.wikipedia.org/wiki/Overshoot_%... Check the section on Control Theory.
I doubt that such a negative feedback mechanism exists, except for the sea ice around Antarctica. And I don't think that this sea ice has much influence on Northern hemisphere weather. And clouds are not cooperating with the negative feedback hypothesis.
Global warming = fewer clouds
http://www.climate4you.com/ClimateAndClo...
Low cloud cover vs time
http://www.climate4you.com/images/CloudC...
Contrary to denialist claims, not everything can be blamed on AGW. You need a mechanism to claim that anything is caused by AGW.
Its bogus . 40 years ago they were talking about global cooling . And the evening news too. Dont alarmist say weather is not climate ?
No, it's simply weather.
This report in the Times Magazine says it might http://science.time.com/2014/01/06/climate-change-driving-cold-weather/
But can you make sense out of this statement Quote
"Still, this research is fairly preliminary, in part because extreme Arctic sea ice loss is a fairly recent phenomenon, so scientists don't have the long data sets they need to draw more robust conclusions about the interaction between Arctic warming and cold snaps. In fact, the most recent report from the Intergovernmental Panel on Climate Change concluded that it was likely that the jet stream would shift towards the north as the climate warmed, and that the polar vortex would actually contract....
"And while a muddle like that would seem to make the science less rather than more reliable, it's actually one more bit of proof that climate change is real."
