Can bugs recycle carbon?

...and help us solve the energy crisis? An amazing discovery by scientists for all those who are concerned about emissions of carbon dioxide into the atmosphere...

Under the gleam of blinding lamps, engulfed by banks of angrily frothing flasks, Makoto Watanabe is plotting a slimy, lurid-green revolution. He has spent his life in search of a species of algae that efficiently “sweats” crude oil, and has finally found it.

Now, exploiting the previously unrecognised power of pondlife, Professor Watanabe dreams of transforming Japan from a voracious energy importer into an oil-exporting nation to rival any member of Opec.

The professor has given himself a decade to effect this seemingly implausible conversion: Japan’s export-led economics have always been shaped by their near 100 per cent dependence on foreign energy. In the present world economic climate, those economics are looking especially fragile.

“I believe I can change Japan within five years,” the Professor told The Times from his laboratory in Tsukuba University. “A couple of years after that, we start changing the world.”

The algae, he believes, will spearhead enormous changes to the way that energy is produced and to the explosive geopolitics that have developed around the global thirst for fossil fuels. They could also overturn the current debate on corn and sugar-based biofuels. It is madness, he says, for humanity to pursue sources of energy that compete with its own stomachs when there is a far purer source that does not sitting in a test tube in his laboratory.

I couldn't agree more. Food for fuel is a very, very bad idea.

Professor Watanabe’s vision arises from the extraordinary properties of the Botryococcus braunii algae: give the microscopic green strands enough light – and plenty of carbon dioxide – and they excrete oil. The tiny globules of oil that form on the surface of the algae can be easily harvested and then refined using the same “cracking” technologies with which the oil industry now converts crude into everything from jet fuel to plastics.

The Japanese Government has supplied him with hefty grants to work on ways of industrialising the algae cultures. The professor admits that there is much work to be done to bring the financial and environmental costs of creating algae oilfields down to reasonable levels: to meet Japan’s current oil needs would require an algae-filled paddyfield the size of Yorkshire.

But – in laboratory conditions at least – the powers of Botryococcus braunii are astonishing. A field of corn, when converted into biofuel ethanol, may produce about 0.2 tonnes of oil equivalent per hectare. Rapeseed may generate around 1.2 tonnes. Micro algae can theoretically produce between 50 and 140 tonnes using the same plot of land.

We'll be sure to keep an eye on this story.

And this one too: Scientists find bugs that eat waste and excrete petrol