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Jennifer Marohasy

Jennifer Marohasy

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Pulp Mill To Reduce Rainfall?

October 9, 2006 By jennifer

I have been sent bits of information about particulate pollution and how this can reduce rainfall downwind of industrial areas and cities. I made some comment on this issue when I was in Hong Kong and somewhat surprised by the extent of the air pollution.*

Aaron Gingis has been a key proponent of the thesis. He has variously suggested that the reason we have a drought in south east Queensland is because of particulate pollution and that the solution to the drought in the Murray Darling Basin is cloud seeding.

I have often pondered Gingis’ claims while studying this map:

BOM%20jan97-06%20rainfall%20deciles%20blog.jpg

It suggests record low rainfall in our most heavily populated catchments. It was part of a blog post from David Jones in which he commented that Perth, Canberra and Melbourne catchments have all experience their lowest (or nearly so) rainfall on record. David didn’t mention pollution as a cause, and I have been meaning to ask him why.

Anyway, while some doomsayers have been more inclined to blame low rainfall on global warming, the Tasmanian Greens have commissioned Mr Gingis to prepare a report which has concluded that there will be a massive drop in rainfall in Tasmania’s north-east if a proposed pulp mill goes ahead.

According to ABC Online:

Mr Gingis said the ultra fine particles emitted by the mill will change the density of clouds and reduce rainfall in the north-east by up to 80 per cent…

“They make clouds actually constipated, in other words the clouds simply changing their metrophysics and not precipitating or precipitating much less.”

Mr Gingis has lobbied governments, irrigators, bloggers and others on the issue of pollution and reduced rainfall suggesting we can’t do much about the pollution and that the solution is cloud seeding.

It is interesting that ABC Online has just now reported the phenomenon and in the context of a campaign against a pulp mill proposed by timber company Gunns Ltd and there is no mention of cloud seeding as the solution.

—————————–
* See https://jennifermarohasy.com.dev.internet-thinking.com.au/blog/archives/001631.html :

I was recently sent the following very interesting papers on global dimming and its potential impact on rainfall in Australia: Rosenfeld, D. (2000) Suppression of rain and snow by urban and industrial air pollution. Science, Vol 287, pp 1793-1796. Rosenfeld et. al. (2005) Potential impacts of air pollution aerosols on precipitation in Australia. Clean Air and Environmental Quality, Vol 40, No. 2, pp 43-49. Rosenfeld, D. (2006) Aerosols, Clouds and Climate. Science, Vol 312, pp. 1323 – 1324. ABC TV Four Corners did a feature on global dimming in March 2005, the transcript and reference documents can be found here: http://www.abc.net.au/4corners/content/2005/s1328747.htm

Filed Under: Uncategorized Tagged With: Climate & Climate Change

Keeping Wildlife In the Freezer

October 9, 2006 By jennifer

When I worked for the sugar industry, there was a guy who lived in Ingham, in Far North Queensland, who used to regularly pull the same fish out of the freezer when there was a fish kill and get it on television as an example of poisoning from acid sulfate soils.

It seems activists also keep wildlife in their freezers in Tasmania and have no worries pulling a possum killed by a motorcar out of the freezer and parading it as an example of 1080 poisoning. At least that’s the message we get from Pier Akerman writing in The Daily Telegraph on Saturday in a piece entitled ‘Hello, wasn’t that the ex-possum again?’.

While some activists have no real interest in the truth, just a particular barrow to push, you would like to think journalists from the Australian national broadcaster, the ABC, were a bit more diligent. But it seems they don’t even have a particularly good system for keeping track of file tape/news footage… click here.

Filed Under: Uncategorized Tagged With: Fishing, Forestry

The Montreal Protocol Hasn’t Stopped Ozone Depletion

October 8, 2006 By jennifer

There was a crash in the production of chlorofluorocarbons (CFC) following the signing of the Montreal Protocol in 1987.

By 1999 atmpospheric levels of manmade ozone destroying chemicals had leveled off and since 2003 there has been a 7 percent drop in the amount of chlorine and bromine in the lower stratosphere (10-25 km). This is apparently where most ozone loss occurs.

Given its original objectives, the Montreal Protocol has been a huge success and reduced concentrations of ozone-depleting gases.

The United Nations Environment Programme (UNEP) has been predicting for some time that the reduction in concentrations of ozone-depleting gases will result in a recovery in the ozone layer and also the Antarctic ozone hole.

So what happened this year?

Over the last few weeks we have heard report after report that the ozone hole over the Antarctic has expanded to a near-record size despite the successful global ban on chlorofluorocarbons.

An incredible 40 million tonnes of ozone had been lost over Antarctica this year, exceeding the record 39 million tonne loss in 2000 with the depth of the ozone hole now rivaling the record low ozone values of 1998.

Discussion, including at this blog, has focused not on chlorofluorcarbons as the cause of the now growing ozone hole, but on atmospheric temperatures and other phenomena.

It is interesting to reflect on what some skeptics were writing 10 years ago.

At that time S. Fred Singer was sounding something like a global warming skeptic with his piece entitled ‘Ozone politics With a Nobel imprimatur’ in the Washington Post.

He wrote: “Further research will likely prove the CFC-ozone issue to have been a minor environmental problem. In the meantime, hasty policies to ban CFC production by the end of 1995, though a financial windfall for chemical companies and appliance manufacturers, will impose substantial economic costs — up to $100 billion — on U.S. consumers and make life worse for the poorest everywhere — especially in developing nations.”

There is even mention of hurricanes and Al Gore in the article.

Anyway, it is interesting to ponder why, given the success of the Montreal Protocol, there has not been a reduction in the hole over the Antarctic?

———————————————————————–
Thanks to Bob Foster for sending me the S. Fred Singer paper.

A note to commentators, I am interested in better understanding this issue and I’m interested in your opinion. But comments that don’t add new information and/or that are disrespectful may be edited and /or deleted.

Filed Under: Uncategorized Tagged With: Climate & Climate Change, Pesticides & Other Chemicals

R U Flying: An Inconvenient Truth (Part 4)

October 6, 2006 By jennifer

Aviation generates about 5 percent of the world’s greenhouse gas emissions but their warming effect is up to four times greater at high altitudes according to Jonathan Leake writing last weekend in The Sunday Times.

The article entitle, ‘A green snag they emitted to mention…’ suggests that environmental leaders are amongst the highest greenhouse gas emitters in the world because they like flying to exotic locations for their holidays and conferences. According to the article:

“Among those with the highest air miles is Bob Napier, chief executive of WWF, formerly the World Wildlife Fund, one of the best-known environment groups. In the past 12 months he has visited Spitsbergen, Borneo, Washington, Geneva, and Beijing on business trips and taken a holiday in the Falklands, generating more than 11 tons of carbon dioxide. A typical British household creates about six tons of CO2 a year.”

And did anyone notice how many planes Al Gore got on and off, and how many places he boasted he had visited to give that lecture, in that movie ‘An Inconvenient Truth’. I lost count.

Anyway, someone sent me this link to a piece published by USA Today entitled ‘Gore isn’t quite as green as he’s led the world to believe’.

It doesn’t add up the plane trips, but it does suggest that Mr Gore is another one of those environmental leader who doesn’t practice what he preaches.

gmc0502259909.jpg
For photographs visit www.whalephoto.com.

———————
I’ve a series running on that movie, the last post, part 3 can be read by clicking here: https://jennifermarohasy.com.dev.internet-thinking.com.au/blog/archives/001641.html .

Filed Under: Uncategorized Tagged With: Climate & Climate Change

What will Australian Farmers Be Growing in 10 Years Time?

October 4, 2006 By jennifer

What will Australian farmers be growing in 5- 10 years time?

I watched Part 3 of Two Men in a Tinnie * on ABC TV last night. It’s about environmentalist Tim Flannery and TV personality John Doyle motoring down the Darling and Murray Rivers in a small aluminum boat.

They have met lots of people along the river but haven’t yet interviewed a rice or cotton farmer while often complaining about these crops. In Parts 1 and 2 they reminisced about the days when farmers grew sheep rather than cotton.

A couple of years ago I wrote that:

“It is [Peter] Cullen’s contention that we can save water in the Murray–Darling Basin by growing higher value crops, in particular wine grapes. And there are those who insist that rice growing should be banned altogether. While concerned greens may be keen to sip champagne for breakfast, rather than crunch rice bubbles—all in the name of doing the right thing by the environment— is this really a sustainable approach?”

I went on to explain in that article that…

“One of the most defining characteristics of water in the Australian landscape is flow variability. In the poem ‘My Country’, Dorothea McKellar appropriately describes Australia as a land ‘of drought and flooding rains’. Reflecting this variability, water allocation can be severely restricted in drought years like the present, even though water storage capacity in the Murray Darling Basin is approximately 25 per cent of annual average runoff.

Paradoxically, rice growers easily cope with this by simply not planting a crop. In contrast, South Australian wine grape growers bleat loudly because their perennial crop needs water every year.”

Just yesterday I read Rabobank bank boss, Bert Heemskerk, stating that northern hemisphere farm subsidies ‘have to go’ and that this would lead to lead to an inevitable shift in global agricultural production from the northern hemisphere to the south.

The Pharmland website also suggests that Europe, in particular that Denmark, should lessen its dependence on massive EU agricultural subsidies and fostered a freer global market, allowing Third World countries to enter the market and begin self-sustaining economies. The site goes on to suggest that Denmark farmers begin to cultivate high value GM crops including vaccine-laden tomatoes.

At the opposite end of the spectrum is the potential increased production of low value GM crops for ethanol.

David Tribe wrote in the IPA Review last year that:

“Already, Brazilian fuel ethanol has become a substantial part of international trade, and currently competes commercially on US fuel markets, even with the penalty of a 51 per cent US excise tax. This dominant global trade position in ethanol liquid-fuel capitalises on 30 years of previous technological improvement, including earlier introduction of higher yielding cane varieties and numerous integrated changes to ethanol factories.

The recent wave of ethanol fuel ventures in Australia cannot afford to ignore the reality of markets dominated by very cheap Brazilian ethanol and the prospects of even lower priced Brazilian and US ethanol in the near future.

Cereal straw and sugar cane bagasse are not the only cellulosic starting materials which can be converted to sugar using enzyme catalysts: wood and many other non-food crops can also be used, and forest industries in Canada and Scandinavia have particular interests in this area.

…Ethanol biofuel doesn’t make economic or environmental sense without the tools and discoveries of modern biotechnology.

Without this, Australia would be better off importing its fuel ethanol from South America.

Setbacks to farm profitability and investment caused by GM crop bans show that technological leadership entails much more than just science and the costing of economic returns and agronomic benefits. They represent destruction of basic economic freedoms and threats to the medium term financial viability of several rural industries. Resolution of this damage might come from a frank assessment of the misjudgements of industry, farming groups, and politicians that caused them, as well as an action plan to change stakeholder strategies.

If it is indeed true that they were driven by political calculations about urban votes rather than government attention to the interests of the rural sector, stronger activism by farming organizations, such as the National Farmers Federation and other networks such as the recently established Producers Forum (which is a loose national network of concerned growers), are a very welcome sign.”

But not everyone is so optimistic. Last week I received an email from Aaron Edmonds with a link to a piece in The Daily Star that began:

“The Furnace Australia sailed into Chennai recently carrying a load of wheat and, some warned, ill tidings. India’s first wheat imports in six years marked a reversal in the march toward “food independence” that the country began in the 1970s.

In the piece Jason Overdorf goes on to suggest that Indian agriculture is in trouble, too reliant on technology and running out of water:

“Swaminathan urges leaders to focus on what he calls an ‘evergreen revolution’. The goal would be to correct the damage wrought by the first Green Revolution: adopting new methods like the use of natural predators instead of chemicals to eliminate pests, and switching to organic fertilizers and more efficient drip irrigation. He also says Singh should promote crops that require less water, including native Indian grains such as finger millet (ragi), pearl millet (bajra) and sorghum (jowar).

That’s a tough sell for two reasons: these coarse grains, once a staple of regional Indian cuisines, have fallen out of style since the first Green Revolution made wheat cheap and plentiful. So restoring their popularity will take a major marketing push, of the kind governments rarely do well. Second, Singh sees India very differently from the critics, as a nation fighting to attain middle-class comfort, not one at risk of sliding into mass hunger. Watch the future voyages of the Furnace Australia, and whether it is carrying grain to India, for one strong sign of which view is right.

But i’ts hard for me to reconcile the claim that Indian agriculture is in trouble with reports that cotton yields are up?

Indeed world cotton production is projected at 25 million tons in 2006/07 with China (Mainland), India and Pakistan combined expected to produce 13 million tons in 2006/07, or over half of world production for the first time in history.

Again, according to David Tribe in that piece from last year’s IPA Review:

“Modern plant breeding is playing decisive role in this economically disruptive but beneficial-to-the consumer transition. The continuing global progress with this revolution, which started in Australia and the US in 1996, is illustrated by recent comments made by Zhang Rui, a member of a research team in the Chinese Academy of Agricultural Sciences. In September this year, he announced that China has approved commercialization of a new hybrid variety of insect-resistant Bt cotton—which contains a protein that kills bollworms—that should yield 26 per cent more cotton. The last two seasons have also witnessed truly dramatic improvements in the
Indian cotton industry productivity.

Widespread use of genetically modified cotton seeds has helped assure India of a bumper 2005 cotton harvest, with national output estimated at 25 million bales, up seven per cent from 2004.”

Back to that original question: What will Australian farmers be growing in 5- 10 years time?

Will the demand for ethanol (in Australia and overseas), lifting of the bans on GM food crops, lifting of agricultural subsidies in Europe, relative competitiveness of Asian farmers, or the availablility and price of water, be the most significant drivers of change?

———————————
* I’ve noted Luke’s request that I comment on this series. I’m working up to a long blog post pointing out the difference between the rhetoric and the imagery.

Filed Under: Uncategorized Tagged With: Food & Farming

Global Warming Bits & Pieces

October 3, 2006 By jennifer

I’ve received a few bits and pieces on global warming from readers of this blog:

Cathy sent me a link to an article explaining that the European Commission is set to roll out the first phase of a major pan-European marketing campaign to raise awareness of climate change:
http://www.revolutionmagazine.com/News/index.cfm?fuseaction=ViewNewsArticle&newsID=595977

Luke recommends http://www.theozonehole.com/climate.htm for everyone still wondering about the connection between ozone and global warming following the note from Helen Mahr, in particular:
“Ozone’s impact on climate consists primarily of changes in temperature. The more ozone in a given parcel of air, the more heat it retains. Ozone generates heat in the stratosphere, both by absorbing the sun’s ultraviolet radiation and by absorbing upwelling infrared radiation from the lower atmosphere (troposphere). Consequently, decreased ozone in the stratosphere results in lower temperatures. Observations show that over recent decades, the mid to upper stratosphere (from 30 to 50 km above the Earth’s surface) has cooled by 1° to 6° C (2° to 11° F). This stratospheric cooling has taken place at the same time that greenhouse gas amounts in the lower atmosphere (troposphere) have risen.”

Warwick Hughes wrote: I have been very impressed with the breaking work of E-G Beck drawing attention to many published refs to high CO2 levels since 1820 and notably in WWII years. I have a Blog post on that at:
http://www.warwickhughes.com/blog/?p=64#more-64
There is a 10 page summary pdf file there. It will be fascinating to see if further support can be found for Beck’s conclusions. Beck’s detailing of the depth and quality of work which found these early high CO2 numbers supports the conclusions of Dr Zbigniew Jaworowski in his ice core research where he draws attention to the suppression of inconvenient high readings to fit the IPCC line.

George McCallum has sent me a beautiful picture of sunset over mountains and glacier in Isfjorden, Spitzbergen, with the note that Spitsbergen or Svalbard as it is also known, recorded one of the warmest summers on record this year. Isfjorden is just 900km from the North pole.

gmc0709067016.jpg
For beautiful pictures visit www.whalephoto.com

Filed Under: Uncategorized Tagged With: Climate & Climate Change

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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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