The northern end of the Antarctic Peninsula is Warming Fast
– BBC, August 23, 2012
No, it’s not. When BBC reported this, the Northern Peninsula hadn’t on average warmed a lick in thirty years.
In the 1990s and early part of this century, news reports about the dramatic warming of the northernmost Antarctic Peninsula—the tip of the 800-mile dagger pointed at the heart of Tierra del Fuego—were a common staple. And, while scientists wouldn’t write this in the literature, they were happy to blame it on dreaded carbon dioxide on television, as paleoclimatologist Robert Mulvaney did in the 2012 BBC feature.
The story has become increasingly curious. Marc Oliva of the University of Lisbon recently examined the high quality weather stations over the northern peninsula and the nearby South Shetland Islands. There is a decent warming trend, averaging around 1.5⁰C, from the beginning of the data in 1957 (the year when Antarctica was instrumented as a part of the International Geophysical Year) to the early 1980s, or about a quarter-century. That’s a warming, if it continued (and surely it would!), of 6⁰C per century. The warming that gets huge attention is actually only from a single station, Faraday (now renamed Vernadsky), which warmed roughly 2.5⁰C during the same period. If that continued (and surely it would!), that’s 10⁰C/century!
Oliva et al. wrote that the “Faraday/Vernadsky warming trend is an extreme case, circa twice those of the long-term records from other parts of the AP.” The variability in the Faraday/Vernadsky record is also huge—around three times as much as other stations in the area, probably because it is often at the edge of the sea-ice.