Wednesday, July 18, 2012
With temperatures topping 100 degrees Fahrenheit this month in Chicago, thoughts turn to global warming. Whether any particular extreme weather event could be a symptom of climate change is difficult to say. Even higher-than-normal regional temperature patterns may not be direct evidence of the planet's warming overall. Climate models cannot forecast changes in temperature or rainfall at local levels.
Posted by Michele Kearney at 8:21 AM