For the benefit of mankind

[youtube]OG_1mgKOb6k[/youtube]

Last weekend I drew attention to Monbiot’s musings on financial and ecological crises. This weekend it’s ecological economist Herman Daly explaining in simple terms why economic growth has become uneconomic growth: we’re getting less wealth and more illth (hat tip: Things Break). That leads nicely to New Scientist’s special issue on The Folly of Growth – covered in detail at Things Break (follow the links there), and also under discussion at frogblog. There are limits to growth and we’re hitting them, but we lack the political and economic tools to deal with the problem. In that context, check out the recent PBS documentary Heat: it opens with an Indian scientist opining:

We are standing at the precipice of hell. If everybody else was to live as an American, we’re doomed.

See also: Nick “Report” Stern’s call for green solutions to the financial crisis. He can’t avoid the word growth, but at least he’s proposing less illth.

[Title reference: mp3]

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]

You can’t Hide (your policy from me)

rodenymorph.gifA few months ago, Rodney Hide decided that he and his party had little to lose and votes to gain by declaring themselves to be climate sceptics. I’ve roundly criticised this stance in earlier posts, and this week I’ve been joined by The Listener‘s Ecologic columnist Sarah Barnett, who takes Hide to task here (full text available next week). With the election approaching, it’s time to dig a little deeper into the intellectual foundations of ACT’s climate change policy, such as they are.

The ACT web site now features a policy document [PDF], and a background briefing [PDF] on their policies page. Let’s take a detailed look…

Continue reading “You can’t Hide (your policy from me)”

Down on the farm

20040612-CRW_0583.jpg An Italian olive grove and vineyard is on its way to becoming the world’s first carbon neutral farm (they claim). According to the BBC, the Castello Monte Vibiano Vecchio estate in Umbria is converting to electric vehicles (and biofuelled mini-tractors) and has installed a “solar filling station” designed by Austrian company Cellstrom, based on an array of solar panels feeding a “flow battery” – a new battery technology that allows greatly increased energy storage.

Depending on the amount of usage, the battery centre can store solar-sourced electricity for up to three days. They are working to extend that to 10 days and more, enabling the farm to continue operating through foggy days when the sun does not shine. It means that golf carts and electric bikes will become the key means of transport for farm workers and that they can all charge up at the battery centre.

Cellstrom estimates the farm can save 4,500 litres of petrol every year and reduce CO2 emissions by 10 tons.

According to Lorenzo Fasola Bologna, Monte Vibiano’s chief executive, it will take about five years to recoup the initial investment.

Flow batteries store negative and positive electrolyte solutions (based on vanadium salts) in tanks, and pump them through a reaction cell to charge and discharge. Energy storage is therefore linked to storage tank size, not the number of cells in the system. This makes them ideal as backup storage for wind and solar energy generation, making the energy available even when the sun’s not shining or the wind’s not blowing. New Scientist has a good backgrounder here (behind a paywall, sadly), and there’s also information on the Cellstrom site. Another company in the field is VRB Power Systems of Canada, who have been working with Australian-developed technology.

Back in Umbria, the Italians are covering all their carbon-neutral bases by planting 10,000 trees to mop up any excess emissions.

By the end of next year they hope to be the first farm, anywhere, to reduce their inherent net carbon footprint to zero – ie without using off-site offsetting projects. “It will be great,” says Lorenzo, “to pass on this great, green enterprise to my children and their children.”

Chez Hot Topic we have a vineyard and an olive grove, and I’m already planting trees to offset at least some of our emissions. I wonder if there’s a flow battery in an off-grid future down on our farm?

[Title reference]