So it's perfectly OK to "hide the decline." After all, it doesn't really matter if tree ring data shows a decline in temperature in modern times when the temperature is obviously rising as shown by accurate thermometers. We'll just use the tree ring data as a proxy for past temperatures anyway. And when we discover the "anomaly" we'll just neglect to extend that graph line because it would be awkward to explain just why that green line is headed down, down, down while everything else is headed up.
After all, we're only coming off the "Little Ice Age" and are in an inter-glacial period. We can explain the "Medieval Warming Period" and the "Roman Warming Period" They're just "local variations," you know.
And so what if Al Gore got his CO2 readings and his temperature readings backwards, thus claiming CO2 caused temperature rises when the rises came first? It makes a very scary looking graph.
And what about the ice core samples from Greenland that show the "Hockey Stick" is such a minor glitch it can't be seen? Don't worry. We can change the scale to make it look bad and besides, no matter what input we use, as long as it's "red noise" (like stock prices) we get a hockey stick anyway! So no matter what we do, we can show how alarming it is!
Oh, and did we put some of our temperature gauges in asphalt parking lots in the south? Don't worry, we've "adjusted" those readings artificially.
After all, we're SCIENTISTS and we can explain everything. Move along. There's nothing to see here.
Chemtrails are real, too....