Tag: Australia

Cloud nine (#2)

kanga.jpg Forty leading Australian scientists have issued an urgent call for action on climate change. Drafted by Barrie Pittock and Andrew Glickson, the statement says that there is a “window of opportunity to halt a climate crisis”, if Australia begins:

Urgently cutting carbon emissions.

Seizing the opportunity to fast-track utilisation of established and new clean energy technologies thus creating new business opportunities.

An urgent tree-planting campaign in Australia and its neighbors.

Attempts at CO2 capture through soil-carbon enrichment and preservation.

The statement has a list of nine suggested policies, including committing (and urging others to commit to) a peak greenhouse gas level of 450 ppm CO2e. Barry Brook at Brave New Climate, one of the signatories, suggests we may need to go further:

We need CO2-e to be 300-325 ppm, and >100% emissions reductions (with active geo-bio-sequestration) as soon as possible. Nothing less is going to pull out out of the sticky mire into which we are now rapidly sinking.

It would be useful if our science community could issue an equivalent statement in the run up to the election, to provide voters with guidance on what can and should be done here – and a yardstick against which to measure policy proposals (or the lack of them). Consider it the scientific equivalent of Treasury’s opening of the national books…

[Title ref: one, two]

The Dreaming

garnaut.jpg The final version of the Garnaut Climate Change Review on Australia’s response to climate change was released today. I haven’t had time to read it (it’s big, and detailed), but I will be taking it into account when I finish my long-promised post on targets. Money quote (from the synopsis):

There are times in the history of humanity when fateful decisions are made. The decision this year and next on whether to enter a comprehensive global agreement for strong action is one of them. Australia’s actions will make a difference to the outcome, in several ways.

The chances of success at Copenhagen would be greater if heads of government favouring a strong outcome set up an experts group to come up with a practical approach to global mitigation that adds up to various environmental objectives. On a balance of probabilities, the failure of our generation on climate change mitigation would lead to consequences that would haunt humanity until the end of time.

Quite. Barry Brook’s blog (Brave New Climate) will be a good place to go for informed analysis and comment over the next few weeks. And there will be considerable interest in Wellington and from our politicians.

[Title reference: Kate Bush at her daftest (with Rolf Harris on didgeridoo)]

All together now

tintinsnowy.jpg It’s getting hectic down here in the Waipara bunker: articles to write, truffles to harvest – stuff is piling up, not least in a multitude of tabs in my web browser, items set aside as possible subjects for posts here. So here’s one of my infrequent omnibus posts to give me some room to move around the web…

Continue reading “All together now”

Love is hot, truth is molten

Tuatara.jpg It’s a bleak outlook for sexual equality in tuatara refuges in the Cook Strait. By the end of the century, their nesting sites could have warmed up enough to make all hatchlings male. Nature News reports on new, detailed modelling of how tuatara’s island homes will respond to climate warming:

With the aid of computer software, the researchers combined the physics of heat transfer with terrain data for the four-hectare North Brother Island in New Zealand’s Cook Strait. Using the exact coordinates of 52 known nesting sites of the rarest species of tuatara (Sphenodon guntheri), along with a database of current soil properties and their constant temperature equivalent, the researchers simulated climate change and then monitored its effect on specific points across the island. They found that based on maximum warming predictions, tuatara, which hatch as males when nest temperature during development moves above 21.5°C, will be incapable of producing females.

Fortunately there’s a solution: tuatara tents, and camping holidays in cool places.

“We can put shade cloth over their nesting sites to effectively change their sex ratio back to a 1-to-1 ratio even if the planet warms — or start translocating them to other places that would be more suitable, ” [research leader Nicola] Mitchell [of the University of Western Australia in Perth] adds. “Translocations are already occurring to the mainland and we now have a tool to identify which locations would produce favourable sex ratios.”

[Mitchell, N. J. , Kearney, M. R. , Nelson, N. J. & Porter, W. P. Proc. R. Soc. B doi:10.1098/rspb.2008.0438 (2008).]

Mrs O’Leary’s Cow

homer.jpg Did you know that all cows are carbon neutral? That all the fuss about forcing farmers into an emissions trading scheme is stuff and nonsense? You do now, thanks to the sterling efforts of the Carbon Sense Coalition, an Australian organisation. They issued a press release yesterday, news of which reached me via the Royal Society‘s daily news alert:

News release: Farm lobbies abandon farmers. The Carbon Sense Coalition today accused the big farming lobby groups, government departments, politicians and Ministers representing agriculture of ignoring science and abandoning farmers to unjustified carbon taxation.

Ignoring science, eh? I went in search of what they might be on about…

[Warning: do not read while drinking – extreme beverage/screen interface risk]

Continue reading “Mrs O’Leary’s Cow”