This sentence demonstrates the danger of interpretation of science by non-scientists.
“Greenhouse” gases do not trap heat in the atmosphere. They absorb energy at certain wavelengths and reradiate it in all directions, some down to Earth, some out in space.
Recent satellite measurements show that heat energy leaving the Earth’s atmosphere to space is much greater than that predicted by global climate models, and adopted by the IPCC in their prognostocations. This means that all of their “predictions” of future climate are called to question, including those parroted by “most scientists.”
Fortunately, science does not advance by consensus. If ten scientists are wrong and one scientist is right, do we ignore the correct interpretation of data anyway? The findings of one scientist can completely negate the findings of hundreds. It is the data, methodology and conclusions that are critical in scientific investigation, not the number of scientists who agree.
Whether or not Antarctica respond to climate variation has no bearing on the source of climate change. Antarctica and the Arctic have been changing for millennia with no help from human society.
Climate variation is natural, spurred and limited by natural cycles within the biosphere.