Does El Niño cause warming of the Antarctic Continent?

Answer 1

Antarctic ice has been growing for many years and, according to the IPCC, will continue to do so for at least another 150 years. Overall net ice change (in mass) has been zero. As the Arctic loses ice due to warming and solar activity, we see ice building at almost the same rate in the Antarctic.

So no, El Niño (La Niña in the cooling phases) is a twenty-six mile ocean current off the west coast of South America. While it is responsible for relatively local weather patterns, it has nothing to do with manifesting climate change. It simply sounded cool to TV News Talking Heads in the early 1980's who picked it up to refer to the climactic pattern known as the Southern Oscillation, which causes El Nino to become more or less pronounced.

The Southern Oscillation is the atmospheric portion of a climactic pattern that occurs roughly every five years in the immediate vicinity of the equator across the eastern portion of the Pacific Ocean. When warm ocean surface temperatures meet high atmospheric pressure, El Niño ensues (the ocean current strengthens). When lower ocean surface temperatures meet low atmospheric pressure, La Niña ensues (the ocean current weakens).

Neither of these phenomenon, combined or separate have much if anything to do with warming in Antarctica.