Entrepreneurs in Africa are addressing sanitation needs by collecting human waste and turning it into energy and other necessary products.
Browsing the "fuel" Tag
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The massive diversion of grain to fuel cars has helped drive up food prices, leaving low-income consumers everywhere to suffer some of the most severe food price inflation in history. As of mid-2012, world wheat, corn, and soybean prices were roughly double their historical levels.
The phrase “food to fuel” often refers to production of corn-based ethanol or soy-based biodiesel… not exactly most efficient use of these commodities. But there are situations when food to fuel represents a smart use of resources: when that food will go to a landfill. While the capture of landfill gas has become more prevalent, why spend the money and other resources shipping it there? Why not just direct food waste to energy production?
By Lester R. Brown Between 2007 and 2011, carbon emissions from coal use in the United States dropped 10 percent. During the same period, emissions from oil use dropped 11 percent. In contrast, carbon emissions from natural gas use increased by 6 percent. The net effect of these trends was that U.S. carbon emissions dropped […]
When I first met Josh Tickell a few years ago, he was a blonde-haired, baby-faced, young man driving around the country in a diesel van painted with yellow sunflowers that he was running on used fast food vegetable oil. He called it the Veggie Van and he was an unabashed biofuel evangelist. I asked Josh […]
This week at ZapRoot: Is Google destroying the planet one search at a time? The recycling market has gone bust. And check out “That’s Just Weird.”
Peak driving season, when many Americans hit the road to visit relatives or see the sights, is now in full swing. With U.S. gas prices topping $4 a gallon in some places — and likely to edge up more during summer’s high demand — you may want to consider taking more efficient mass transportation. But […]
The end of 2007 brought with it news of cleantech developments for 2008 and beyond. Here are a few that I found most interesting. Do any sound promising to you? Fuel Cubes A Minnesota company called Renewafuel has developed a biomass briquette that is similar in size and moisture content to coal, produces a consistent […]