I must be a tiny bit sensitive. When I see a climate related article that makes absolutely no sense, I tend to overreact. A case in point, a recent BBC article on hot weather in Australia. The article says:
“Australia has been warming up by about 0.9C [a year] since 1910,” Dr Braganza told the BBC.
Australian temperature records go back to 1910.
The emphasis added by the writer is clearly a silly stupid mistake, the world warmed about 0.9 degree C in the 20t century and not 0.9 degree C per year for 105 years. Australia hasn’t started acting like Venus, although on a warm day in January it might seem so.
Australia’s average annual weather bounces around quite a bit which is not particularly surprising as regional climate varies much more than the world as a whole. Just three years ago the average for the year was a full degree C lower than in 2013.
Australia hasn’t been steadily rising for a hundred years. It’s had warm years and cold ones with a slow rise over the century as this data from the Australia Bureau of Meteorology demonstrates:
Clearly the person writing the article didn’t understand how climate works or she wouldn’t have made such a silly mistake…and I guess that is my complaint.
It is interesting that Australia is warming faster than the rest of the Southern Hemisphere. Most 20th century warming occurred over land in the Northern Hemisphere as this University of East Anglia Climate Research Unit (CRU) graph demonstrates:
Still it is a bit of a puzzle. I wonder why the little ecosystem that is Australia has acted as it has. Perhaps it’s simply a short term trend. It’s difficult to tell with such a small data set and such a big country.
I’d suspect the older Australia data to be of poor quality. Most of the best data on climate is new data. I’d be a bit surprised if they had good land based data even 50 years ago. It’s a big place…so any comment about a trend that began in 1910, when the data began, is a bit of a guess. Probably a SWAG number?!