It's not as hot as you think it's been.

You probably already know this, but we have some shady characters in our government's employ.

NASA revised their temperature data last week to reflect a Y2K bug found in their calculations. 1998 is no longer the warmest year in America's past century. That honor has been returned to 1934. Not that a look at NASA's website would enlighten you to this fact. There are no press releases. Nothing in any of their articles reflects this change. They just quietly changed the data after someone pointed out an error in their temperature calculations.

"Calculations?" you ask. "What calculations?" Apparently our public officials have been doing alchemy on the measured data to "fix" it for heat-island effect and other such things. No one outside NASA GISS knows what their calculations are, because they refuse to let anyone else see them.

The Y2K bug meant that from year 2000-2007, they calculated the heat-island effect as if the cities were of a density from 1900-1907. It's as if they thought someone tore up all the concrete and asphalt from all the cities.

How does this affect 1998? Why, because of further hocus pocus, of course. The official numbers are actually a five-year average!

This doesn't explain all the "adjustments" to their data. There's problems like air conditioners being install next to thermometers. They also fiddle with data from natural-setting thermometers to fit urban thermometers, which are notoriously less reliable. And they've certainly increased the reported temperatures over the past few decades a lot more than they ever did before.

A good quote from the last link, CoyoteBlog, which explains what's going on here: "Temperatures that don't increase as they expect are treated as an error to be corrected, rather than a measurement that disputes their hypothesis."

In summation, the so-called scientists fiddle with any data that gets in the way of their next global-warming-hysteria-provided paycheck.