We’re told that global warming is a fact, and the earth is getting hotter at an accelerating rate. And yet … much of Australia has just experienced one of the coldest months ever recorded. Here are some facts about Australia’s weather in August 2008 which are unlikely to get a mention in any global warming news story.

[Note to foreign readers: August is winter in Australia, temperatures are in degrees celcius]

• New South Wales - 2nd coldest August on record for minimum temperatures and 5th coldest for mean temperatures (statewide averages). Cold records broken in 29 locations.
• Sydney - coldest August since 1944
• Tenterfield - coldest August night on record (-9.5)
• Glen Innes - coldest August night on record (-8.4) and coldest night (in any month) for 36 years
• Orange - 10 consecutive days below 8 degrees for the first time in 17 years.
• Tamworth - coldest night in 16 years of records (-6)
• Murwillumbah - coldest night on record (-1.4)
• Queensland - colder than usual throughout, minimum temperatures up to 3 degrees below long term averages in the south-east and nearby parts.
• Burketown - temperature fell to 5 degrees for the first time in 24 years
• Coolangatta - 10 consecutive mornings of 5 degrees or less (breaking the old record of six)
• South Australia - temperatures significantly below average across the state; records for lowest August temperatures broken at Ooodnadatta and Leigh Creek.
• Adelaide - second coldest August on record (only August 1951 was colder)
• Launceston - lowest August average minimum temperature on record
• Western Australia - mean temperatures below average (by up to 3 degrees) throughout, except for coastal strip in the west. Cold records broken in 11 locations.
• Northam - coldest August night on record (-1.5)
• Albany Airport - coldest August night on record (0.8)
• Eyre - set a new record for the coldest temperature ever recorded in Western Australia (-7.2)
• Mt. Hotham - 53 consecutive days in which the temperature didn’t rise above zero degrees: the longest unbroken stretch of subzero temperatures recorded in Australia

These cold extremes affected a large part of the continent, over an extended period - it wasn’t just a freak event in one place. I could also mention the great snow which has made this ski season in Australia one of the best in years. Snow records are likely to be broken in New Zealand. Further south, I’ve read that Antarctic sea ice has been more extensive than usual. You could say “If global warming gets any worse, we’ll all freeze!”

Lake Highway in Tasmania experienced
more snow, and for longer, when I
was there this winter

Of course one cold winter doesn’t disprove global warming (although there’s plenty more credible evidence to challenge it … but that’s another story). What this unusually cold month illustrates is the media’s lack of balance.

Whenever some unusually warm weather occurs, the media are quick to report it and associate it with global warming … often accompanied by that familiar footage of ice falling off the end of a glacier. However, news media are comparatively silent about all the unusually cold weather that also occurs. You may have heard the numerous predictions that Arctic sea ice would completely disappear by 2008. You are far less likely to have been told that, far from disappearing, there is instead up to 30% more Arctic ice at the end of August 2008 than one year earlier.

So next time you see a global warming media story telling us how hot it’s getting, just remember that we’re only being shown part of the picture.

Information is from WeatherZone News, Bureau of Meteorology and Global Warming Hoax.