If you haven’t yet read the heartbreaking news or seen the tragic images, here’s another reason to oppose Canada’s oilsands development: On Monday, some 500 migrating ducks landed in a waste pond at a Syncrude site in Alberta … and only a handful survived long enough to be rescued and, with luck, restored to [...]
After hearing President Bush blame Congress for our country’s high gas, food, and energy prices yesterday, I still wasn’t convinced that drilling in ANWR would solve all of our problems (note: sarcasm).
It turns out that voters, at least according to a poll of 1,200 Americans conducted by Peter D. Hart Research Associates Inc., feel the same way.
Not only did fifty-seven percent of voters rate energy issues as “very serious” concern, but they also thought investment in renewable energy was the best solution:
While the national average price of gasoline is now $3.60, some residents of Utah are happily filling up on compressed natural gas (CNG) at $0.63 per gallon. That’s the country’s lowest price for CNG, which has understandably caused a surge in demand for vehicles running on a fuel that one man described as “practically free.”
So far, CNG vehicles haven’t made a blip on my radar screen, even though the group Natural Gas Vehicles for America (NGVA) estimates there are 150,000 NGVs on U.S. roads today and over 5 million worldwide. It took a phone call from sunny Southern Utah to clue me in to recent developments, which include a local refueling station overflowing with CNG-hungry vehicles.
This morning on NPR, President Bush tried to blame congress for the nation’s high gas, food, and electricity prices. Apparently, Congress has been thwarting the President’s attempts to fix the economy:
“I’ve repeatedly submitted proposals to help address these problems,” the president said. “Yet time after time, Congress chose to block them.”
Today’s topic is inspired by Solar Today magazine. “Scrubbing Carbon from the Breeze” was written by Rona Fried, Ph.D., president of SustainableBusiness.com in the May/June 2008 issue. Unfortunately this particular article is not available online.
As climate change become a more central issue for people and governments around the globe, a lot of people are looking for solutions - fast solutions. If there were a quick and inexpensive way to dramatically reduce the amount of CO2 in the atmosphere, we should go for it right? Well a number of “quick fix” solutions, which have centered around hacking the environment to fight climate change, have been floating around for years. One strategy is to capture the CO2 with plankton and bury it in the ocean (which is much easier and cheaper than pumping it into the ground). Another is to change the composition of our atmosphere to reflect sunlight. Others tend to be more sci-fi and outlandish - but all of them might just turn out to be disastrous.
With dwindling fossil fuel supplies, coal has been viewed as the energy source of last resort. This outlook is changing as estimated global coal supplies seem to have been severely inflated. Is coal’s future in doubt?Many experts are saying yes. Professor David Rutledge of CalTech believes that world coal reserves are grossly overstated and could be substantially exhausted this century. This is in stark contrast to earlier forecasts.
In the last 20 years, official coal reserves have fallen by 170 billion tons. To put this number in perspective, global coal consumption in 2007 was 6 billion tons. Reserves figures are dropping far more quickly than actual extraction.
When generating electricity, roughly two-thirds of the energy is lost. Heat is created as a byproduct to spin turbines and later wastes away in cooling towers. Chicago has committed to produce 1.5 billion kilowatt hours of electricity by 2010 with a process call combined heat and power or cogeneration, which finds use for the generated heat. This process can be over 90% efficient.Excess heat can be used for dehumidification, heating water, and process heat. In an ideal world, the electricity and heating loads for the given application are similar. Hospitals, prisons, paper mills, oil refineries, waste water treatment centers, and even large towns can be good candidates for this technology. Your car can even be an example, with waste heat from the engine being used to warm the interior.
In light of our new Live Debate on nuclear energy running in our Green Options Discussion Forum, I see an opportunity to provide some context with another gem from the e2 energy series on PBS. e2 energy is a series of well-produced and thought-provoking pieces that go beyond the issues raised in the longer programs. Running time is 3 minutes.
“The U.S. could nearly eliminate our dependence on coal, oil and gas for electricity and transportation, drastically slashing global warming pollution without increasing costs for energy,” said David Mills, chief scientific officer and founder of Ausra.
You may be wondering, how will we have electricity at night or during cloudy weather?
Will we use large banks of batteries or burn candles?
The ability to utilize solar thermal technology after the sun sets is made possible by a storage system that is up to 93% efficient, according to Ausra’s executive vice president John O’Donnell.
John Hutton, a business Secretary and cabinet minister in the UK, recently said that coal must remain a part of his nation’s energy system.
Although he wants the UK to lead the world in renewable energy, he argues that some form of coal will be needed to work with renewables. The Liberal Democrats, on the other hand, argue that coal cannot be clean without carbon capture and storage. The problem is that technology [...]
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