NASA’s photo makes it look as if West Antarctica is burning up. But when you read the actual words, you find that temperature in the area has (supposedly) risen just over a tenth of one degree per decade. Not per year, but per decade.
Note also how this area correlates with the new volcanic discoveries.
This in an area where temperatures can plummet to minus 80°C (-112°F).
Is this something that needs to be colored bright red on the map?
Or is this propaganda?
According to NASA, an analysis of satellite and weather station data (supposedly) determined that “Antarctica had warmed at a rate of about 0.12 degrees Celsius (0.22 degrees F) per decade since 1957, for a total average temperature rise of 0.5 degrees Celsius (1 degree F).”
In NASA’s image, dark red reflects the region that warmed the most. Most of the rest of the continent is orange, indicating a smaller warming trend, or white, where no change was observed.
It has been difficult to get a clear picture of temperature trends throughout Antarctica because measurements are so scarce, says NASA. Few weather stations exist, and most of these are near the coast. Temperature has never been monitored routinely across vast parts of the interior.
Scientists therefore used the relationship between ground measurements and satellite measurements to extrapolate temperatures over the entire continent, thus generating a 50-year record of temperature. This even though no satellite was in orbit during many of those years.
So … that’s how they did it.
Based on scarce measurements and almost no weather stations in the continent’s vast interior (Antarctica is more than twice as big as the continental United States), and no satellite measurements for many of the years involved, they extrapolated that temperatures had risen at the horrendous rate of just over a tenth of one degree per decade.
Areas in red correlate with the densest volcanic chain on earth
But what is probably the most interesting is how the areas shown in red correlate with the location of almost one hundred newly discovered volcanoes.
The newly-found volcanoes are concentrated in a region known as the west Antarctic rift, and are “the densest region of volcanoes in the world, greater even than east Africa, where mounts Nyiragongo, Kilimanjaro, Longonot and all the other active volcanoes are concentrated.”
With this new knowledge, how can we possibly blame humans for any (if any) warming in Antarctica?
I think the answer is clear. We can’t.
NASA article (from 2009):
Thanks to Duster for this link
“I can’t be sure without doing a lot more mathematics than I care to, but the odds of this being coincidental are extraordinarily low,” says Duster. “It is also worth noting that Antarctica, covered with LOTS of ice, is still mapped as one of the regions of higher geothermal heat flow – the ENTIRE continent.”