 He illustrates by pointing out that steroids in a baseball player's system do not cause home runs all by themselves but do make home runs more likely.Meteorologist Kerry Emanuel stressed that no individual weather event, such as Hurricane Sandy, can be attributed to climate change, or any specific cause, for that matter.NOAA meteorologist Martin Hoerling attributed the "immediate cause" of Sandy to "little more than the coincidental alignment of a tropical storm with an extratropical storm."