If someone with a hand-held stopwatch tells you that a runner cut his time by 0.00005 seconds, you should be skeptical. If someone with a climate model tells you that a 0.036 Wm-2 CO2 signal can be detected within an environment of 150 Wm-2 error, you should be just as skeptical.

This is from David R. Henderson and Charles L. Hooper, “Flawed Climate Models,” Defining Ideas, April 4, 2017.

The whole thing, which is not long, is worth reading.