The Energy Bulletin

Headlines from the Green Blogosphere


Socially Responsible Investing
Add this box to your site
Add your feed to this box

Our RSS Feeds

Enter your Email


Preview | Powered by FeedBlitz
ss_blog_claim=06695b8c420e87ab6d3252b52367711d
Home
USA Regional Rail System Urgently Needed
The News - Vehicles | Friday, 15 February 2008

There is a great interview over at TreeHugger.com with Andy Kunz, an urban designer and town planner, and the director of the websites www.NewUrbanism.org and www.NewTrains.org. A veteran member of the Congress for the New Urbanism, Kunz's work focuses on the importance of green transportation and trains as a solution to climate change and peak oil.

I knew that I had heard James Howard Kuntzler "rail" (har, har) about the poor state of our our national rail system but had not read much more about any plans to do anything about it. Looks like Kunz and his team have been very busy indeed. Now we just need to find and rally the political willpower to redirect our resources away from roads/highways/airports to national/regional/local railways. Read the full interview at TreeHugger.com

 
GreenEnergyTV.com for some Good News
The News - Energy | Thursday, 14 February 2008

Well my last post was all Doom and Gloom regarding the Subprime Mortgage Debacle and its effect on the Global Economy. Well I'm proud to see I'm feeling much better. As I was viewing some cute Ads on AdPerk.com (in order to get a free subscription to Ode Magazine) I came across GreenEnergyTV.com which has helped restore my faith in the potential of humans to engineer ourselves a technologically advanced yet sustainable future. Clearly I crave the future of small, walkable intentional communities where the citizens create and maintain a strong community infrastructure built on local and regional economies. And I don't mind timesharing a small economical non-polluting vehicle powered by compressed air and/or algae-based fuels. But dammit I still want my Internet.

 
Subprime Mortgage Losses Could Rise to $400 Billion
The News - Bad News | Tuesday, 12 February 2008

from FT.com 

As usual, it appears that the bad news from the subprime mortgage fiasco in the USA is much, much worse than we have been lead to believe. Just listen.

"Speaking after the meeting of Group of Seven finance leaders, Peer Steinbrück, German finance minister, said the G7 now feared that write-offs of losses on securities linked to US subprime mortgages could reach $400bn.

This is sharply higher than the $120bn credit losses that Wall Street banks and other institutions have revealed in recent weeks – and also far bigger than the US Federal Reserve’s estimates for subprime losses last year of $100bn-$150bn.

But G7 finance ministers admitted that it remained unclear where much of this subprime pain would eventually emerge, not least because the path of the credit crunch was still uncertain. Mr Steinbrück and other ministers appealed to financial institutions to provide “prompt and full disclosure’’ of losses, to restore confidence."

And to top it all off:

"The finance ministers said they stood braced for individual and collective action to ensure financial stability and avoid recession. They conceded that growth was likely to slow in all their economies, since the world was facing what Hank Paulson, US Treasury secretary, called a “challenging and uncertain environment”, due to tighter credit, a deterioration of the US housing market, higher oil prices and rising inflation.

 

 
Aerogenerator Horizontal Turbine - Up To 9 MW of Electricity
The News - Energy | Friday, 08 February 2008
Aerogenerator wind turbine

The Aerogenerator wind turbine (Photograph: Grimshaw Architects)

from the Guardian Unlimited

 

Check out this new style horizontal axis wind turbine (HAWT) developed by Windpower in  Blyth, UK.  This new HAWT is designed to address some of the flaws and limitations associated with vertical axis wind turbines (VAWT). Specifically, VAWT require gearing mechanisms to ensure they are always facing into the wind and the generators and gearboxes tend to be in an inaccessible position at the top of the structure's tower. By contrast, vertical axis wind turbines (VAWT) can harness the wind from any direction, allowing them to run more efficiently without the need for such mechanisms.Also a VAWT turbine becomes unstable above a certain height. The biggest HAWTs are capable of producing 6MW of power and stand just short of 200m tall, but if you try to make them any bigger they start to become less efficient.

With this new design the center of gravity is at the bottom making the structure much more stable. And no matter how high the two main structures are made it is relatively simple to make them bottom heavy. Because of this the technology lends itself to large engineering projects, which is precisely what is needed with wind power. Also VAWT's can also be deployed on a smaller scale. A Wyoming-based firm, TMA, has spent the past 12 years developing a cylindrical version and plans to build generators in sizes from 2kW domestic models up to 525kW for wind farms. Windpower is also interested in small-scale versions and says it should have a 30m high community scale 50kW version available within about two years.

 
The "Great Pacific Garbage Patch"
The News - Reduce, Recyle, Reuse | Friday, 08 February 2008
great pacific garbage patch
Image courtesy of Greenpeace

from The Indepenent via TreeHugger

I had no idea that there was even such as thing as the "Great Pacific Garbage Patch" or "trash vortex". But there it is. Believed to hold almost 100m tons of flotsam, this vast "plastic soup" stretches 500 nautical miles off the Californian coast, past Hawaii and almost as far as Japan. 

"The "soup" is actually two linked areas, either side of the islands of Hawaii, known as the Western and Eastern Pacific Garbage Patches. About one-fifth of the junk – which includes everything from footballs and kayaks to Lego blocks and carrier bags – is thrown off ships or oil platforms. The rest comes from land."

How has humankind come to this? And what would be considered the most pressing issue facing us at this time? Global Warming and Climate Change? The health of our forests? The state of our fresh water aquifers? Or 100 million tons of plastic soup taking up an area of the Pacific Ocean larger than the continental United States? Scary stuff.

 
<< Start < Prev 1 2 3 4 Next > End >>

Results 13 - 18 of 22
CitizenRe Solar Energy for your Home