Scientists think they have found a smart way to constrain carbon dioxide emissions - just turn them to stone.
The researchers report an experiment in Iceland where they have pumped CO2 and water underground into volcanic rock.
Reactions with the minerals in the deep basalts convert the carbon dioxide to a stable, immobile chalky solid.
Even more encouraging, the team writes in Science magazine, is the speed at which this process occurs: on the order of months. — BBC
It feels rare to hear good news from the climate front these days. Here's some more:Copenhagen divests from fossil fuelsArchitect turned sea-flooding specialist keeps Panama City afloatSan Francisco to mandate solar panels for new constructionsThe scientists trying to harness the power of waves
[UCLA's team of interdisciplinary researchers'] plan would be to create a closed-loop process: capturing carbon from power plant smokestacks and using it to create a new building material — CO2NCRETE — that would be fabricated using 3D printers. [...]
“We can demonstrate a process where we take lime and combine it with carbon dioxide to produce a cement-like material ... We’re trying to develop a process solution, an integrated technology which goes right from CO2 to a finished product." — luskin.ucla.edu
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Perhaps the most important and widely-used building material, concrete also has an enormous environmental impact. This is largely because in order to produce one ton of cement – the material that binds together rock aggregate in concrete – about 900 kg of C02 are emitted. In fact, the concrete...
Scientists have recently discovered deep deposits of a powerful warming gas leaking into the ocean from previously hidden vents just off North America's East Coast, kicking up underwater carbon dioxide levels [...] Most of the vents are located about 1,600 feet down, the perfect spot for the ocean's temperature and water pressure to combine and create an oozing mix of ice and methane gas, a powerful substance with an impact on global warming that's 20 times more damaging than that of [CO2]. — News.Mic
Soundscrapers could soon turn urban noise pollution into usable energy to power cities.
An honourable mention-winning entry in the 2013 eVolo Skyscraper Competition, dubbed Soundscraper, looked into ways to convert the ambient noise in urban centres into a renewable energy form.
Noise pollution is currently a negative element of urban life but it could soon be valued and put to good use. — DesignBuild Source
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