Why Fossil Fuel Divestment Makes Sense

Rolling Stone has a great article looking into the logic of divestment, that is the growing trend to remove investments in fossil fuel companies and investing in renewable companies instead. On campuses around the world students have been pushing their schools to put their money where their mouth is by divesting.

It makes sense to do this as a society too. It’s not just because the current economic system is unsustainable but because it also makes economic sense.

For RBF, the logic of divestment was twofold. “There was a very clear moral impetus to do this,” Wayne says. RBF makes significant grants in the field of sustainable development, and the fund reached a breaking point with Big Carbon over what Wayne describes as “the schizophrenic notion that we had investments that were undermining our grants.”

But there was also “an economic reason for divestment,” Wayne says. RBF’s business is philanthropy. It was determined not to damage its portfolio. But as RBF scrutinized its fossil-fuel investments, it began to have concerns. One of the primary assets on an oil company’s books are its “proven reserves” – that is, the oil in the ground and beneath the oceans that will be the source of future profits. RBF questioned the wisdom of parking its money in companies that, in a low-carbon world, would not be able to bring that oil to market – “proven reserves” risked becoming “stranded assets.” RBF also balked at investing in companies that continue spending astronomical funds in the hunt for even more unburnable oil. Exxon Mobil, America’s largest oil company, despite having more than 25 billion barrels of proven reserves, sunk more than $7 billion into new exploration in 2013 alone. “There is no good reason for this vast expenditure of stockholder wealth,” wrote Longstreth. (He has also served as chairman of the finance committee of the Rockefeller Family Fund.) “It is wasted capital,” he continued, “an offense against stockholders in terms financial alone.”

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Harvest Energy From Everyday Activities

Some gyms are capturing the energy created by users to power the TVs in the buildings. But what if we capture energy from our movements throughout the day? That’s what one designer asked and she set out to examine what the future of wearable energy capture would look like.

Of course, her motivation came from the gym.

“I used to run at the treadmill at the gym, and I saw all these people running on belts,” Ahola says. “It didn’t really make sense to me that we were expending all this energy, but treadmills were consuming all this energy at the same time. So I started delving into the potential of energy harvesting.”

One of Ahola’s most intriguing concepts looked at turning fitness trackers into fitness harvesters. What if, instead of measuring progress by calories burned or steps taken, we measured our fitness in joules, the basic units of energy captured? If we attached energy harvesters to our running sneakers—or bikes—we could then deposit the energy collected from them at terminals Ahola calls “harvest hotspots.”

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This Classroom Makes More Energy Than it Consumes

School
Anderson Anderson Architecture has built a classroom in Hawaii that generates more energy than it consumes, making what they call a “energy positive” building. The term “energy positive” is being encouraged to replace “net zero” as the benchmark for environmental consciousness in architecture.

The classroom does use roof solar panels to generate energy, though the roof’s saw-tooth shape helps to that end. The slating, jagged design is often referred to as a factory roof, deriving from its use in the design of factories more than a century ago. With north-facing windows, this roof shape is particularly efficient at capturing daylight, and paired with lower-lying windows too, it provides ventilation for hot air to escape. Not to mention a good way to shed rain water. Before electricity was widespread, these roofs were the main way massive factories could get both light and ventilation. It fell out of favor, replaced by flat roofs, once electricity became cheaper, but Anderson says it’s still a remarkably effective design. “It’s a reminder some of those things were there for very good reasons,” he says.

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Austrialian Team Gets Solar Efficiency Over 40%

It’s been said that once solar power efficiency gets to 40% it’ll be a tipping point for the mass use of solar panels. Now we can see if that is true as a team of researchers partnered with industry has developed technology to make it so solar energy conversion can regularly hit 40.4%.

The advance involved two steps. Three solar panels were stacked to capture energy from different wave lengths of sunlight, and then excess light from the stacked panels was directed by a mirror and filters to a fourth PV cell, making use of energy previously discarded.

“This is our first re-emergence into the focused-sunlight area,” said Professor Green, who pioneered 20 per cent-efficiency levels in similar technology in 1989.

The institute was prompted to revisit the technology in part because of Australian companies’ efforts to develop large-scale solar towers using arrays of mirrors to focus sunlight on PV cells.

One of those firms, Melbourne-based RayGen, collaborated with UNSW on the project. It is building a plant in China with an solar conversion rate of about 28 per cent across the year.. “We’d take them to the mid-30s” for future projects with the technology jump, Professor Green said

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More People are Employed in Green Energy Than in the Tar Sands

Despite the fact that the tar sands get more subsidies than green energy solutions in Canada, the green energy providers employ more people. Clean Energy Canada released a report today that examines the state of green energy in Canada and they have some remarkable findings.

“Clean energy has moved from being a small niche or boutique industry to really big business in Canada,” said Merran Smith, director of Clean Energy Canada. The investment it has gleaned since 2009 is roughly the same as has been pumped into agriculture, fishing and forestry combined, she said. The industry will continue to show huge growth potential, beyond most other business sectors, she added.

While investment has boomed, the energy-generating capacity of wind, solar, run-of-river hydro and biomass plants has expanded by 93 per cent since 2009, the report says.

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