Lying:

Two reports came out recently making wildly inaccurate claims about sea level.

The first claimed that sea level was going to rise 12 inches in California over the next twenty years. Yet satellites show that sea level has been falling in California for the past twenty years.

US Sea Level Records 1992 -2012

Stupid:

A paper published today in the Journal of Geophysical Research finds that current global climate models make “very large” errors in determining solar radiation at the surface of the Earth “due to ignoring the effects of clouds.” According to the authors, these very large errors can exceed 800 Watts per meter squared, which by comparison is about 216 times more than the alleged effect of doubling CO2 concentrations (3.7 Watts per square metre).

In other words, those wild scary claims by IPCC scientists about runaway positive feedback causing catastrophic climate change were based entirely on not having a clue what they were talking about.