Credible doubt ... the Antarctic Ice Sheet being larger than average, during the "hottest years in the last century", and violating the entire climate change model being used to predict catastrophic sea-level changes!
Thesis is made
Antithesis is rendered
Experiments are conducted (Climate Change SuperComputer Models)
Results are measured. (Ice Sheets should be shrinking, but are growing)
Conclusion, AWG isn't producing the results actually seen compared to the various climate models. The Thesis is flawed, and therefore MUST be reconsidered, but that isn't happening. Why?
The new answer is "global warming is changing currents in the oceans, causing ice sheet growth". So, by example, the global cooling should make the ice sheets smaller? But that doesn't work either, does it?
Hurricanes, Tornadoes, drought, flooding, etc are all about the same or LESS than years before, counter to all the AGW predictions about "massive" change to the climate.
I can cast credible doubt, but it will be ignored by the likes of you, simply because you WANT to believe AGW.