So, even Antarctica is feeling the effects of global warming. Aside from the "well, duh, it's global warming" effect, scientists were going largely on the temps recorded at stations in the eastern part of the continent, in conjunction with the loss of ozone, and seeing that temps were actually cooling in there. New satellite data is showing that warming is occurring on the western side of Antarctica however, enough to offset the temp drops in the eastern portion.
The best part of the article: when one of the author of the report sited in the link above, Eric Steig, summed up climate science in one sentence
"Simple explanations don't capture the complexity of climate," Steig said.