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Zero emissions possible - at $40bn a year

By Adam Morton

AUSTRALIA could move to 100 per cent renewable energy within a decade if it spent heavily on cutting-edge solar thermal and wind technology, according to an analysis released as part of a community bid to redirect the flailing climate policy debate.

The shift would require the annual investment of up to $40 billion - roughly 3.5 per cent of national GDP - with the largest chunk going towards solar thermal power plants that used molten-salt heat storage to allow power generation to continue without sunlight.

The plan by advocacy group Beyond Zero Emissions was outlined at the launch of the Transition Decade, or T10, a grassroots campaign hoping to garner support for dramatic cuts in greenhouse gas emissions. Pitched as a response to the failure to introduce national and state policies to substantially reduce emissions, T10 won support yesterday from the City of Melbourne, the Australian Greens and Victorian Governor David de Kretser.

Energy: it's time to start concentrating

By Paddy Manning

After an interview with Australian solar energy pioneer David Mills in October, this column previewed a Stanford University study showing that renewable sources - principally wind and solar - could meet all of our energy needs. Its co-author, Mark Jacobson - the university's professor of civil and environmental engineering and director of its atmosphere and energy program - appeared by videoconference at last weekend's Sustainable Living Festival in Melbourne.

He spoke about the findings of his study, which was the cover story in November's Scientific American magazine, which has generated plenty of debate in the United States (and some here, too).

Jacobson and Mark Delucchi, a research scientist at the University of California, compared available world renewable energy resources - wind, water, solar - with maximum forecast energy demand, including transport, of about 16.9 terawatts (1 terawatt equals a trillion watts) in 2030. Today's demand is 12.5 terawatts.

Manufacturing a scientific scandal - climate change deniers exposed

This is part four of Clive Hamilton's searing exposé of climate change deniers published on the ABC website. We also highly recommend parts 1, 2, 3 and 5.

 

Although sceptics have been gnawing away at the credibility of climate science for years, over the last five months they have made enormous leaps owing to the hacking of emails from the Climate Research Unit at the University of East Anglia and the discovery of a number of alleged mistakes in the benchmark reports of the IPCC.

While the "revelations" have been milked for all they are worth, and a lot more, the science remains rock solid. If instead of cherry-picking two or three that lend themselves to spin, you read the 1000 or so emails that were posted on a Russian server the picture that emerges is one of an enormously dedicated group of men and women doing their best to carry out research of the highest quality.

Alliance produces 10-year plan in grassroots bid to save planet

SUSTAINABILITY groups are rallying around an environmental alliance's ambitious 10-year plan for community-led action on climate change.

The Sustainable Living Foundation's Luke Taylor said yesterday's launch of Transition Decade, a campaign co-ordinated by the by The Sustainable Living Foundation, Friends of the Earth Australia, Beyond Zero Emissions and the Climate Emergency Network, came at a time when community groups needed a clear way forward.

"A lot of people are pretty depressed about current progress on climate action.  We need a clear platform and unity around key messages," he said.

Government neglect turns lights out for solar power industry

By Kerrie Sinclair

AUSTRALIA has the scorching sun, the scientific skill and private investors poised to swing behind a solar industry boom that could deliver a climate-safe power sector and billions in export earnings.

But missing from that equation is the political will, industry experts say.

Scientists say the world needs to cut greenhouse gas emissions from electricity and transport virtually to zero in 40 years if it wants a decent chance of keeping damage from climate change manageable.

Australia had a major solution in sight long ago. The sun. Australian researchers, including a world-leading team in Queensland, created a golden age in the '60s and '70s for Australian solar innovation.

Handicapped by 19th-century technology

No wonder Australia is lagging behind Spain and China with renewable energy, writes Matthew Wright.

Renewable energy is the fastest growing power source in the world, and already generates baseload electricity on the scale of utilities. Large solar thermal plants with heat storage can dispatch power around the clock every day of the week regardless of whether the sun is shining, and make handsome profits during demand peaks.

Greens call for $20 billion carbon tax to break emissions trading impasse

THE Greens have called on the government to back a $20 billion interim carbon tax proposal to start cutting greenhouse gas emissions.

Greens leader Bob Brown and climate change spokeswoman Christine Milne unveiled the plan today, which would impose a carbon price on polluters of $20 a tonne from the first of July this year.

£100bn wind farm plan heralds green energy era

26,400 turbines to wean Britain off its carbon habit

By Michael Savage, Political Correspondent

Revolutionary plans for a massive expansion of offshore wind farms have been unveiled in a £100bn project designed to usher in a new era of green energy for Britain.

A quarter of the country's electricity needs would be met through wind power by 2020 under the strategy, with the construction of 6,400 turbines within nine sites dotted around the coast. The programme amounts to the biggest energy supply shake-up since the discovery of the North Sea oil and gas fields more than 40 years ago.

Roundup: Climate science in 2009

By Kurt Kleiner

Warming goes global

The year started out with some sobering, if not altogether surprising, news: overall, the Antarctic continent is warming. Although some of the Antarctic Peninsula had previously shown rapid warming, parts of the continent — especially near the South Pole — seemed to be unaccountably cooling.

Rudd's green vision may yet be his undoing

KEVIN Rudd might pull it all off - contribute to a meaningful agreement at Copenhagen, follow through with a greenhouse gas emissions trading scheme next year and then win a federal poll in which environment issues play strongly. But it's looking dicey.

Two years after Rudd was voted in as Prime Minister - The Economist recently called it the world's first climate change election - there is growing uncertainty about his Government's direction.

Rudd got a standing ovation in Bali in 2007 after signing up to the Kyoto Protocol but is now among those rich country leaders working to replace it.

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