I'll say it again

"Global Warming" is a religion.  Wait, scratch that.  Global Warming is a cult.  A cult of easily duped people who desperately wish to believe that they can actually do something to affect the Earth on a large scale.  And like any cult, when reality intrudes, they either face the facts, or ignore them.  And the Global Warming cult has not only been ignoring the facts, they've been changing them to suit their needs.

Goddard shows how, in recent years, NOAA’s US Historical Climatology Network (USHCN) has been “adjusting” its record by replacing real temperatures with data “fabricated” by computer models. The effect of this has been to downgrade earlier temperatures and to exaggerate those from recent decades, to give the impression that the Earth has been warming up much more than is justified by the actual data. In several posts headed “Data tampering at USHCN/GISS”, Goddard compares the currently published temperature graphs with those based only on temperatures measured at the time. These show that the US has actually been cooling since the Thirties, the hottest decade on record; whereas the latest graph, nearly half of it based on “fabricated” data, shows it to have been warming at a rate equivalent to more than 3 degrees centigrade per century.

Emphasis mine.  The blog post referenced is here, and it has a handy little gif showing temperature records both with and without the fabricated data.

Global Warming is a hoax.  And a cult.