Environment

Carbon-Negative Energy Generation

- Adam Clare

All Power Labs sells a device that converts biomass into electric energy. Their machine, which is based on technology over 60 years old, can produce insanely cheap energy while making use of plant matter. They have units that produce 10 kW and 20 kW respectively while the wait for approval for a 100 kW version.

The company even built an experimental unit for a car that ran for quite a distance using only walnut shells. This instantly made me think of the modified Delorean in Back to the Future.

All Power Labs makes machines that use an ancient process called gasification to turn out not only carbon-neutral energy, but also a carbon-rich charcoal by-product that just happens to be a fertilizer so efficient that Tom Price, the company’s director of strategic initiatives, calls it “plant crack.”

Gasification, in which dense biomass smoldering — but not combusting — in a low-oxygen environment is converted to hydrogen gas, is nothing new. Price said that ancient cultures used it to enrich their soils, and during World War II, a million vehicles utilized the technology. But after the war, it more or less vanished from the planet, for reasons unknown. Until Mason needed a way to power his flamethrowers, that is.

All Power Labs has taken gasification and combined it with two of the Bay Area’s most valuable commodities — a rich maker culture and cutting-edge programming skills — to produce what are called PowerPallets. Feed a bunch of walnut shells or wood chips into these $27,000 machines and you get fully clean energy at less than 10 cents a kilowatt hour, a fraction of what other green power sources can cost.

Read more at CNET.

India Bans Shark Finning

- Adam Clare

Chinese demand for the fins of sharks (I have no idea what they are good for) has gone up over the past couple years. India is one of the largest exports of shark parts to China and the Indian government has decided to ban the act of removing fins from sharks.

Worldwide, sharks are in sharp decline, with some species’ numbers now 10 per cent of what they were three decades ago. Their demise threatens the health of ocean ecosystems, experts say, as the top predators are key to keeping fish and turtle populations in check. Tens of millions are caught every year.
…
Conservationists applauded the ministry’s move as key to ending a cruel practice threatening to push some shark populations to the brink.

“Given the perilous status of many shark species, we urge the state governments to act quickly and work to enforce the policy,” said Belinda Wright of the Wildlife Protection Society of India.

More at the CBC.

Scotland Starts Europe’s Largest Tidal Wave Energy Installation

- Adam Clare

Tidal wave energy installations are nothing new, but installing it on a scale that can power 42,000 homes is. The other day, the Scottish government gave the go ahead for starting a wave-powered energy installation.

“This is a major step forward for Scotland’s marine renewable energy industry. When fully operational, the 86 megawatt array could generate enough electricity to power the equivalent of 42,000 homes – around 40% of homes in the Highlands. This … is just the first phase for a site that could eventually yield up to 398 megawatts.”

Speaking at the Scottish renewables marine conference, Ewing also announced that developers Aquamarine Power Limited and Pelamis Wave Power are to share a slice of a £13m wave “first array” support programme, part of the Scottish government’s marine renewables commercialisation fund.

Ewing said the tide is turning for the wave sector.

Read more at The Guardian.

Regrowing a Coral Reef

- Adam Clare

coral

Coral reefs are under threat. Recreational boating and increased shipping have increased the risk to coral reefs from humanity, and increased temperatures have caused coral acidification. There are scientists and biologists around the world trying to help protect coral reefs and revive some of their lost areas. A team in Florida is growing coral on PVC piping then transplanting the coral to endangered areas.

It shows little branches of staghorn coral growing on a “tree” made of PVC pipes. Harvested from wild coral colonies when they’re only 5 cm long, these samples will double in size every two months while attached to the tree. Once they’ve put on enough heft, they’re transplanted to new homes on damaged coral reefs, where they grow into the surrounding environment and help to restore ecosystems that could otherwise be lost. I’d heard about coral restoration before, but had never seen pictures of the process. At the RJD website, you can see a series of photos that take you through it step-by-step. Perhaps unsurprisingly, it looks a lot like underwater gardening — similar to grafting fruit trees.

More at the RJD website.
Via bOing.

London Starts Planting Green Walls for Flood Prevention

- Adam Clare

Earlier this year, Toronto suffered some severe flooding and city planner Jennifer Keesmat composed this great tweet:

One of those programs she is referring to is the tower renewal program which helped energy conservation, local ecologies, and improve housing conditions. Toronto’s mayor ensures these programs don’t get funding.

Here in Toronto where we have a druggy mayor who hates the environment who also sat in an idling SUV during the flooding (idling is illegal in the city). The mayor has gone out of his way to ensure that Toronto treats the local environment worse than it did the year before. I mention this as a contrast to what is happening in England’s biggest city.

In London, they have a mayor who actually knows that climate change is happening and the city is doing something about it. London is no stranger to threat of flooding, indeed the Thames barrier’s lifetime has been reduced due to the increased pace of climate change. With most usable space already consumed, what is the city to do?

London has turned to constructing green walls! The walls absorb water that would otherwise contribute to flooding within the city by soaking up rainwater.

The wall captures rainwater from the roof of the hotel in dedicated storage tanks; the rainwater is then channeled slowly through the wall to nourish plants, simultaneously reducing surface water on the streets below. “The plants themselves will take up rain too, so the rain doesn’t fall on the street below,” says Beamont.

…

During the design process, Grant picked out native ferns, English ivy, geraniums, strawberry and primroses for the living wall, using the Royal Horticultural Society’s pollinators list as a guide. “My approach is to use native species in natural associations, however sometimes it’s not practicable because of problems with availability or a lack of visual interest or late flowering,” he says. “It’s still necessary to choose plants that are known to thrive in living walls, or are likely to thrive in living walls, and are suited to the aspect and microclimate.”

Read more at Co.Exist.

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