Sweltering in the Antarctic

It has been reported that the Antarctic has reached its 'highest' temperature of 18.3 degrees Celsius (https://www.theguardian.com/world/2020/feb/07/antarctica-logs-hottest-temperature-on-record-with-a-reading-of-183c). What they really mean is that this is the highest temperature recorded by humans, as in the geological past, the continent was quite steamy due to plate tectonics. This, however, is of no real consolation as it suggests that Antarctica, with virtually no carbon footprint, is heating up much more quickly than was expected.