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Jennifer Marohasy

Jennifer Marohasy

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Archives for November 2007

Flying Foxes in the Heat of Debate

November 30, 2007 By neil

Spectacled.jpg

Flying foxes to wilt with climate change, by ABC Science Online’s Stephen Pincock, contends that new research shows some of Australia’s flying foxes face a grave threat from extreme temperatures expected to become more frequent with climate change.

Dr Nicola Markus, an Australian expert on their ecology and co-author of this new research, says, “It bodes extremely badly for the black flying foxes.”

In early 2002, she and an international team of researchers witnessed the deaths of more than 1,300 grey-headed and black flying foxes at Dallis Park in northern New South Wales (most of them females and their dependent young).

“On that day, what we saw was, very simply, that the flying foxes died of heat stress,” Dr Markus said. The temperatures, which exceeded 42 degrees Celsius, killed more than 1,300 of the animals. State-wide, more than 3,500 flying foxes fell to the soaring temperatures in that single heatwave.

Flying foxes are keystone species for forest environments. They have also been central to a taxonomic debate, which asks, are they really primates?

In 1986, Dr. John D. Pettigrew published his findings that all flying fox species (examined) shared the half-dozen brain pathways that were otherwise unique to primates. Under a microscope, their brain affinities with lemurs were difficult to tell apart.

Megabats and microbats had been historically grouped together because of the obvious similarities of their handwings. However, Dr. Pettigrew observed that the differences between to two groups included such things as diet, dentition, chromosomes, world geographic distribution, sperm, biochemistry, parasitology and numerous features of behavior. He also hypothesised that the two groups evolved flight separately, with the mega-chiroptera in the Tertiary era and the micro-chiroptera, much earlier, in the Cretaceous.

Filed Under: Uncategorized Tagged With: Climate & Climate Change, Plants and Animals

The Ideal Average World Temperature

November 29, 2007 By jennifer

Nigel Lawson gave an insightful address to the group who gathered for the Institute of Public Affair’s 2007 HV McKay Lecture in Sydney on Monday. He spoke on the politics and economics of climate change and commented:

“Is it really plausible that there is an ideal average world temperature, which by some happy chance has recently been visited on us, from which small departures in either direction would spell disaster? Moreover, while a sudden change would indeed be disruptive, what is at issue here is the prospect of a very gradual change over a hundred years and more.

In any case, average world temperature is simply a statistical artefact. The actual experienced temperature varies
enormously in different parts of the globe; and man, whose greatest quality is his adaptability, has successfully colonized most of it.

Two countries at different ends of the earth, both of which are generally considered to be economic success stories, are Finland and Singapore. The average annual temperature in Helsinki is less than 5ºC. That in Singapore is in excess of 27ºC — a difference of more than 22ºC. If man can successfully cope with that, it is not immediately apparent why he should not be able to adapt to a change of 3ºC, when he is given a hundred years in which to do so.”

The entire speech can be found and downloaded here: http://ipa.org.au/publications/publisting_detail.asp?pubid=695

Filed Under: Uncategorized Tagged With: Climate & Climate Change

New Group Rejects “Kyoto 2”: CSCC Media Release

November 28, 2007 By jennifer

A new Report produced by a coalition of over 40 prominent civil society organisations from 33 countries says that governments should reject calls for a post-Kyoto treaty (“Kyoto 2”) with binding limits on carbon emissions. The report says a better strategy would be to focus on removing barriers to adaptation, such as subsidies, taxes and regulations that hinder technological innovation and economic growth.

From 3-14 December, government officials will be in Bali, Indonesia, for climate talks. They are set to discuss the establishment of a new treaty, dubbed “Kyoto 2”, which would require all countries to limit emissions of greenhouse gases.

The Civil Society Report on Climate Change concludes that such emissions caps would be counterproductive: they would undermine economic development, harm the poor, and would be unlikely to address the problem of climate change in a meaningful way.

It includes four chapters:

1) “Human Ecology and Human Behavior: Climate change and health in perspective” By Paul Reiter http://www.csccc.info/reports/report_22.pdf

2) “Death and Death Rates due to Extreme Weather Events: Global and U.S. Trends, 1990-2006” By Indur M. Goklany http://www.csccc.info/reports/report_23.pdf

3) “Weathering Global Warming in Agriculture and Forestry: It can be done with free markets” By Douglas Southgate and Brent Sohngen http://www.csccc.info/reports/report_24.pdf

4) “The Political Economy of Global Warming, Rent Seeking and Freedom” By Wolfgang Kasper http://www.csccc.info/reports/report_25.pdf

“Kyoto 2 is the wrong solution. Such a treaty would harm billions of poor people, making energy and energy-dependent technologies, such as clean water, more expensive, and would perpetuate poverty by retarding growth”, said Kendra Okonski, Environment Programme Director of International Policy Network, one of the 41 organisations who published the report.

“Given that nations are having trouble complying with the relatively small emissions cuts required under Kyoto, the economic and social consequences of a Kyoto 2 Treaty could be devastating”, added Ms Okonski.

The Civil Society Report argues that adaptation is the best way to enable people to deal with a changing climate. That means:

• Enabling people to utilise technologies capable of reducing the incidence of disease, such as clean water, sanitation, and medicines.

• Deploying technologies – e.g. flood defences, roads, sturdier houses, and early warning systems – that reduce the risk of death from weather-related disasters.

• Removing barriers to the use of modern agricultural technologies, which would better enable people to adapt to changing conditions.

• Eliminating subsidies, taxes, and regulations that undermine economic growth – thereby enabling people better to address current and future problems.

Other conclusions in the Civil Society Report on Climate Change include:

• Over the course of the past century, deaths and death rates from weather-related natural disasters have declined substantially. It appears that the main drivers of this reduction have been improvements in wealth and technology.

• Mortality from extreme weather events is far more strongly affected by the technologies deployed by humans – such as the construction of houses, roads, and dams – than by climate.

• Human ecology and human behaviour are the key determinants of the transmission of infectious disease. Obsessive emphasis on climate is unwarranted because, given suitable economic circumstances, straightforward strategies are available to ensure the public health.

• If adaptation is not unduly restricted, production of food and other agricultural products, as well as forestry products, will keep pace with growing human demands.

• Foreign aid is being used as a ‘carrot’ to induce poor countries to restrict their emissions. But aid has mostly been wasted or even counterproductive. While there is a case for refocusing aid on projects that have a stronger chance of providing net benefits, increasing aid would do more harm than good.

• Finally, the stick of trade sanctions have been threatened as a means of enforcing the global cap – yet such sanctions harm both parties; a clear lose – lose scenario.

————————————
The Civil Society Report on Climate Change, Produced by the Civil Society Coalition on Climate Change, Published Tuesday 27 November 2007, ISBN 1-905041-15-2, 100 pp.

The Civil Society Coalition on Climate Change seeks to educate the public about the science and economics of climate change in an impartial manner. It was established as a response to the many biased and alarmist claims about human-induced climate change, which are being used to justify calls for intervention and regulation. The coalition includes the Institute of Public Affairs.

Filed Under: Uncategorized Tagged With: Climate & Climate Change

Humback and Fin Whale Numbers Misrepresented in Popular Press: ICR Media Release

November 28, 2007 By jennifer

Mr. Minoru Morimoto, Director General of The Institute of Cetacean Research (ICR) in Tokyo, said today that journalists and editors are misinforming the public and abusing the credibility of the World Conservation Union (IUCN). Many of the news articles and stories about Japan’s whale research have incorrectly cited the World Conservation Union (IUCN) listing of humpback whales as “vulnerable” and fin whales as “endangered”.

The fact is that the IUCN’s website for its “Red List” clearly says that these listings are “out of date”. Both the assessment of these species and the criteria used to classify them are “out of date.” This is because the assessments were done in 1996 and used 1994 criteria which have since been revised. The IUCN has received updated assessments from its expert group but these have not yet been made public or adopted. Mr. Morimoto said that journalists and editors should at a minimum acknowledge this when they cite the IUCN listing of humpback and fin whale or not use them inappropriately.

In a similar way, articles have used the IWC Scientific Committee estimate of 42,000 to say that the current population of humpback whales in the Southern Hemisphere is “around 40,000” but that estimate applies to 1997/1998. With the population growing at 10% per year, (IWC SC estimate for East Australia 1981-96, 12.4% and West Australia 1977-91,10.9%) it would now be more than 2.5 times what it was at that time and more than 3 times what it was when IUCN did their assessment.

Mr. Morimoto said that it is misleading and confusing to readers to simply quote the IUCN’s listing which the IUCN itself says is out of date. He urged journalists and editors not to simply copy the rhetoric of the anti-whaling NGOs but to do their homework and present more precise reporting. Mr. Morimoto reiterated his earlier statement that Japan’s research makes a valuable contribution to the management of Antarctic whale species to ensure that any future commercial whaling regime is robust and sustainable and that a take of 50 humpback whales would have no impact on the population or the whale-watching industry.

Web links to IUCN World Conservation Union Red Listing of Humpback and Fin whales (see “annotations” in “Assessment Information”) and the International Whaling Commission website.

Humpback whale: http://www.iucnredlist.org/search/details.php/13006/all
Fin whale: http://www.iucnredlist.org/search/details.php/2478/summ
IWC population estimates: http://www.iwcoffice.org/conservation/estimate.htm

Filed Under: Uncategorized Tagged With: Plants and Animals

The Phenomenological Approach to Estimating the Effect of Total Solar Irradiance on Climate

November 27, 2007 By Paul

I’ve mentioned before that the flawed ‘hockey stick’ temperature reconstruction is used to reduce the role of the sun in climate change. Little pre-industrial temperature variability would help support the claim that 20th century warming is mainly anthropogenic in origin. Scafetta and West have recently published a continuation of their phenomenological approach to estimating the role of total solar irradiance (TSI) in climate change, which compares TSI reconstructions with temperature reconstructions.

Interestingly, Scafetta and West conclude that: “if we assume that the latest temperature and TSI secular reconstructions, WANG2005 and MOBERG05, are accurate, we are forced to conclude that solar changes significantly alter climate, and that the climate system responds relatively slowly to such changes with a time constant between 6 and 12 years. This would suggest that the large-scale computer models of climate could be significantly improved by adding additional Sun-climate coupling mechanisms.”

I should point out that solar irradiance is only one potential solar effect on climate and the IPCC rate the ‘level of scientific understanding’ (LOSU) of ‘solar irradiance’ as ‘low.’ Even the contrived Lockwood and Frohlich (2007) paper pointed to the possibility of an unknown ‘solar amplifier’ and the expected fall in future solar activity. Furthermore, it is possible that equivalent solar forcing is ‘different’ to greenhouse gas forcing.

Anyway, the JGR paper entitled: ‘Phenomenological reconstructions of the solar signature in the Northern Hemisphere surface temperature records since 1600’ by N. Scafetta and B. J. West can be found here. It’s a good read, so enjoy!

Filed Under: Uncategorized Tagged With: Climate & Climate Change

Bans Lifted on GM Food Crops

November 27, 2007 By jennifer

Jen,

NSW and Victoria have just lifted the ban on genetically modified (GM) crops!

It wont take them long to see the benifits either… won’t take long before South Australia and Western Australia freak out because the yeilds back in the eastern states blow them away!

It’s about time Aussies embraced farming of the future.

Regards,
Mick

Information on the review of the moratorium on GM canola in Victoria can be found at the Victorian Department of Primary Industries website including the Review Panel report.

The Indepedent Review GM Crop Moratorium Final Report can be found at the NSW Department of Primary Industries website.

Filed Under: Uncategorized Tagged With: Biotechnology

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Jennifer Marohasy Jennifer Marohasy BSc PhD has worked in industry and government. She is currently researching a novel technique for long-range weather forecasting funded by the B. Macfie Family Foundation. Read more

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To get in touch with Jennifer call 0418873222 or international call +61418873222.

Email: jennifermarohasy at gmail.com

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