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Some reading for the “anti-warmalists” and “climate-change deniers”

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Author Topic: Some reading for the “anti-warmalists” and “climate-change deniers”  (Read 36160 times)
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Kiwithrottlejockey
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« Reply #275 on: January 04, 2014, 06:35:56 pm »


from The Sydney Morning Herald....

2013 confirmed as Australia's hottest year on record

By PETER HANNAM | Friday, January 03, 2014

Australia smashed its previous annual heat record in 2013. — Photo: Glenn Campbell.
Australia smashed its previous annual heat record in 2013. — Photo: Glenn Campbell.

AUSTRALIA smashed its previous annual heat record in 2013, with a summer heatwave and spring hot spell among the outstanding periods of unusual warmth.

The Bureau of Meteorology on Friday confirmed that last year was the hottest nationwide in more than a century of standardised records, with mean temperatures 1.2 degrees above the 1961-90 average.

Every state and the Northern Territory recorded at least their fourth warmest year by mean temperatures, underscoring the breadth of 2013's unusual heat. By maximums, all but Victoria and Tasmania recorded their hottest years, with nationwide maximums a full 1.45 degrees above the long-term average, shattering the previous record anomaly of 1.21 degrees set in 2002.

Among the cities, Sydney posted daily maximums averaging 23.7 degrees in 2013, well above the previous high in more than 150 years of records, of 23.4 degrees set in both 2004 and 2005, said Blair Trewin, a senior climatologist at the Bureau of Meteorology. Minimum temperatures were the third-highest, at 15.1 degrees, a shade below the 15.2 degrees set in 2007 and 2009.

Melbourne posted its third hottest year, also based on records going back to the 1850s, with maximums averaging 21.5 degrees, shy of 2007's record of 21.8 degrees. The city's minimums averaged 12.2 degrees, second only to 2007's 12.5 degrees.

This January has also started with a blast of heat over inland regions, with Moomba in South Australia recording 49.3 degrees on Thursday, while Birdsville in Queensland clocked up 48.6 degrees.

Walgett, meanwhile, reached 49.1 degrees on Friday, the highest for the state since 1939, the Bureau of Meteorology's Dr Trewin said. Walgett, in fact, was only one many towns to set records on Friday, with others including Moree, Tamworth, Armidale, Narrabri and Coonabarabran in NSW, and St George and Roma in Queensland.

The hot air mass is slowly shifting east. Brisbane may challenge its record high of 43.2 degrees on Saturday, with 41 degrees currently forecast.

"That (forecast) would be factoring in some possibility of a sea breeze," said the bureau's Dr Trewin. "If the sea breeze fails, anything could happen."


Australia's heat in 2013: no region below average. — Souce: Bureau of Meteorology.
Australia's heat in 2013: no region below average. — Souce: Bureau of Meteorology.

‘Unprecedented year’

David Karoly, a climate scientist at the University of Melbourne, said 2013 was "an unprecedented year" for Australia not least because it came in a period without an El Nino weather pattern over the Pacific. The so-called El Nino-Southern Oscillation - which typically warms up eastern Australia in particular — remained in neutral through the year, and continues to do so.

"These record high temperatures for Australia in 2013 cannot be explained by natural variability alone," Professor Karoly said. "This event could not have happened without increasing greenhouse gases, without climate change."

A heatwave in early January, when the national average maximum temperatures reached 40.3 degrees on January 7th, set the country up for a hot year. January was Australia's hottest month on record and December 2012-February 2013 was the hottest summer.[/size]

Neutral conditions

Unusually warm waters around Australia helped keep temperatures well above average in 2013, while many parts of the country recorded their mildest winters on record.

Climate experts say another intense El Nino year, such as in 1998, could challenge even 2013's newly set temperature highs.

Australia's warmth during 2013 extended into spring, with September setting records as the most exceptionally hot month on record. Average maximum temperatures were 3.41 degrees above the long-run average, with South Australia's 5.39 degrees above the norm — a record for any state or territory in any month.

The heat was accompanied by early season bushfires, particularly around Sydney in October, and extensive drought across much of Queensland.

Rainfall nationally averaged 428 millimetres, about 37 millimetres below average, for the year.


Wet in the north west in 2013, mostly dry or average rain elsewhere. — Souce: Bureau of Meteorology.
Wet in the north west in 2013, mostly dry or average rain elsewhere. — Souce: Bureau of Meteorology.

Capitals, states, world

Aside from Sydney and Melbourne, most other state capitals also had notably hot years.

Canberra and Hobart posted their second warmest years. Perth had its third-warmest year by maximum temperatures, while Darwin and Adelaide had their third-equal warmest. Brisbane, in the midst of a very warm period to start 2014, lagged in 2013 with only its ninth warmest year.

Among the states, NSW had its warmest year, with maximums 1.76 degrees above the long-term average, beating the 1.63 degree anomaly set in 2002, said the bureau's Dr Trewin. By mean temperature, the state was the second warmest on record, behind 2009.

For Victoria, maximum temperatures were 1.3 degrees above normal, placing it third-warmest on records behind the 1.42 degree anomaly set in 2007. Both mean and minimums were also third-highest for the state.

South Australia was exceptional in a remarkable year, with the state setting its highest maximum, mean and minimum temperatures, the bureau said.

Globally, 2013 was the sixth hottest year in records dating back to 1880. No year since 1985 has recorded a below-average global mean temperature reading, and nine of the 10 warmest years have occurred in the past 12 years, the Bureau of Meteorology said.

The bureau also noted that only one year in the last decade was cooler than average, when a strong La Nina weather pattern over the Pacific kept temperatures low in 2011. The average for each of the rolling 10-year periods from 1995-2004 to 2004-2013 have been among the top 10 records, it said.


Many towns across southern Queensland and northern NSW set temperature records on Friday. — Souce: Bureau of Meteorology.
Many towns across southern Queensland and northern NSW set temperature records on Friday. — Souce: Bureau of Meteorology.

Politic debate

Australia's warmth prompted heat of a political kind, with Greens and Labor saying the records mean the Abbott government is wrong to be attempting to scrap having a price on carbon.

Acting Greens leader Richard di Natale said it went against all evidence for the government to unwind the carbon tax.

"Tony Abbott’s a reckless ideologue who ignores the science and is intent on listening to people who are part of the tinfoil hat brigade," he told reporters in Melbourne.

"The experts right around the world are telling him loudly and clearly that we’ve got a big problem on our hands and we’ve got to start taking action to fix it."

Acting opposition leader Penny Wong said the only people in Australia who didn’t believe in climate change were Mr Abbott and his cabinet.

Foreign Minister Julie Bishop said that was nonsense.

"What we will do is take direct action that will reduce emissions and we’ll meet our 5 per cent reduction target" of 2000 carbon emission levels by 2020, she told reporters in Perth.

"Under Labor’s carbon tax, prices go up and emissions go up so Labor’s response was a nonsense."

Senator Wong said the government’s direct action policy was "a con job you have when you think that climate change is absolute crap".

Environment Minister Greg Hunt was asked to comment directly on the Bureau of Meteorology’s finding that "the past year emphasises that the warming trend continues" but did not respond.


http://www.smh.com.au/environment/climate-change/2013-confirmed-as-australias-hottest-year-on-record-20140103-308ek.html
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