Tag Archives: climate

How you pay for your neighbour’s air-conditioning

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Are you one of the lucky ones with air conditioning? As we swelter through this heatwave, those that can are switching on the AC and keeping cool. Those that can’t are lying semi-naked in front of fans with a wet cloth on their heads.

In the past 20 years, Australians have embraced air conditioning. In 1994, a quarter of households had it. These days more than half do.

While it’s bliss to sprawl in front of the cold air, there is a serious downside to chilling out. The Productivity Commission last year said that air conditioners are largely responsible for putting the electricity network under strain and that strain costs us dearly…

Read more: http://www.abc.net.au/environment/articles/2014/01/16/3926300.htm

What are the odds on climate science?

TOMORROW, IN MELBOURNE’S hallowed ground, the MCG, the rockin’ and rollin’ Dockers will take on the mighty fighting Hawthorn. Who will win? Good question, and there’s a lot of money riding on it.

But let’s pretend for a minute, that you had a super computer that can run a predictive mathematical model, like the one at the headquarters of the Bureau of Meteorology across the CBD on Collins Street. Never mind what the bookies calculate, this machine can do 53,912 gigaflops when it’s really trying.

What data would you punch into the machine? You’d take assessments of how the teams had fared against each other previously, and how they had fared in the kind of weather we expect tomorrow. But the BoM’s computer can take 23 million pieces of input data. So you could punch in a lot more than just that. You could plug in data about each individual player, their injury history, their playing style, their speed and their accuracy.

Let’s pretend that you found 23 million pieces of information about the teams and conditions to plug into the computer and you programmed it to run a simulation of the game.

It says the Dockers win. How confident would you be about the result? You’re right, Hawks fans, let’s run that thing again…

Read more: http://www.abc.net.au/environment/articles/2013/09/27/3858063.htm