Turkey poop could offer a potent alternative to coal

November 24, 2017 by  
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Turkeys don’t just offer fuel on a Thanksgiving plate. Two Ben-Gurion University of the Negev researchers found turkey poop could act as a potent alternative energy source – and could actually replace around 10 percent of coal utilized for electricity generation. Turkey, chicken, and other poultry poop, when treated and converted to solid biomass fuel, could offer an alternative to coal. Biomass comprises 73 percent of renewable energy production around the world, according to a press release on the work, but instead of growing crops for biomass, utilizing turkey excrement could solve two problems. The researchers said in the statement, “Environmentally safe disposal of poultry excrement has become a significant problem. Converting poultry waste to solid fuel, a less resource-intensive, renewable energy source is an environmentally superior alternative that also reduces reliance on fossil fuels .” Related: 6 Ways to Convert Poo into Power They compared turkey poop as biochar and hydrochar; the first is “produced by slow heating of the biomass at a temperature of 450 degrees Celsius in an oxygen-free furnace” and the second by “heating wet biomass to a much lower temperature of up to 250 degrees Celsius under pressure” in a process known as hydrothermal carbonization (HTC). Turkey poop processed as hydrochar seemed like the better option, offering 24 percent higher net energy generation, according to the researchers, who said, “Poultry waste hydrochar generates heat at high temperatures and combusts in a similar manner to coal, an important factor in replacing it as renewable energy source.” The researchers discovered greater temperatures during the HTC process resulted in a reduction of methane and ammonia emissions , although there were increases in carbon dioxide and carbon monoxide . But researcher Amit Gross said, “Our findings could help significantly reduce greenhouse gas emissions associated with electricity generation and agricultural waste.” The journal Applied Energy published the research online this month. Via American Associates, Ben-Gurion University of the Negev Images via Andrea Reiman on Unsplash and Pixabay

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Turkey poop could offer a potent alternative to coal

Atlanta says all new construction must be "EV ready"

November 24, 2017 by  
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Several countries have already stated that within the next decade or so combustion vehicles will no longer be allowed, but here in the United States, the government hasn’t really made any significant mandates around EVs. Except for the city of Atlanta, which recently passed a new law that mandates all new residential homes and public parking facilities to accommodate electric vehicles . The new ordinance requires 20 percent of parking spaces in new commercial and multifamily parking structures to be EV ready, and new residential homes must also be equipped with the infrastructure needed to install EV charging stations. Related: California may ban gas and diesel-powered cars by 2030 “Today, the City of Atlanta has taken a historic step to increase our EV readiness and to ensure we remain a leading city in sustainability. I want to thank Councilmember Keisha Lance Bottoms for introducing this legislation and the Atlanta City Council for their work to pass this ordinance,” Mayor Kasim Reed said in a Tuesday statement . “I am proud of our City’s commitment to energy conservation, as well as our efforts to ensure that EVs and EV charging stations remain accessible to everyone.” The new “EV Ready” ordinance will go into effect immediately. This isn’t the first time that the Atlanta has made efforts to increase the number of electric vehicles on the road. The city already has a fleet of 60 electric vehicles and even its police department has a small fleet of electric vehicles. + City of Atlanta Via Treehugger Images via Honda, Chevy and Ford

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Atlanta says all new construction must be "EV ready"

Meteorologist warns collapse of two Antarctic glaciers could flood every coastal city on Earth

November 24, 2017 by  
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Two of Antarctica’s glaciers are holding our civilization hostage, meteorologist Eric Holthaus wrote in a piece for Grist . Pine Island and Thwaites are among the continent’s biggest and fastest-melting glaciers , together holding back ice that could unleash 11 feet of sea level rise . If they collapse, every coastal city on our planet could flood. Thwaites and Pine Island sprawl across a plain over 150-miles-long, and inland widen to a reserve of ice two-miles-thick that’s about the size of Texas, according to Holthaus, who says there’s no doubt the ice will melt. The question is not if, but how soon. Should the two glaciers collapse, every shoreline and coastal city could be inundated with water, leaving hundreds of millions of climate refugees homeless. And those events could happen in 20 to 50 years – too fast for humans to adapt. Related: Antarctica’s newest iceberg may destabilize the entire ice shelf Two climatologists, in a study published in Nature last year, said an increase of six feet in ocean levels by 2100 was more likely than three feet – but if carbon emissions continue increasing in a worst case scenario, all 11 feet of ice held back in Antarctica could be freed. But if these glaciers are miles thick, wouldn’t it take an incredibly long time for them to collapse? That may not be the case in our warming world. Holthaus pointed to new evidence saying once we reach a certain temperature threshold, glacier ice shelves extending into the sea – like those of Thwaites and Pine Island – could melt from below and above, quickening their demise. Holthaus noted not every scientist thinks there’s cause for panic. National Snow and Ice Data Center lead scientist Ted Scambos said the two glaciers may not collapse all at once – and rapid collapse would still produce several icebergs that could slow the rate of retreat and act as a temporary ice shelf. But the scientific community is starting to think we need more research into the risk of rapid sea level rise, according to Holthaus. University of Michigan leading ice sheet scientist Jeremy Bassis said, “Every revision to our understanding has said that ice sheets can change faster than we thought. We didn’t predict that Pine Island was going to retreat, we didn’t predict that Larsen B was going to disintegrate. We tend to look at these things after they’ve happened.” Via Grist Images via Wikimedia Commons and NASA

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Meteorologist warns collapse of two Antarctic glaciers could flood every coastal city on Earth

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