For my pal HVAC ...

The bigger picture.
So today it is a little warmer than it was yesterday.
But it was far colder 25,000 years ago ...
(see attached graph)
In fact, HVAC, it's a series of cyclical event and you
really think that mankind had or has anything to do with it,
or that the likes Al Gore or our HNIC and their Carbon Tax
can slow it down ???

http://www.snouts-in-the-trough.com/archives/5194

Perhaps more reading and less "Hit Girl" ...