Showing posts with label green energy. Show all posts
Showing posts with label green energy. Show all posts

Saturday, March 5, 2011

You can't spell extremely appalling without EPA...

There are a bunch of people who stand firm that we can drill our way to energy independence, arguing that oil and natural gas are all we need and that investing money into renewable energy sources or next-generation nuclear power are a waste of time and money.

What they don't tell us (and what they may fail to realize themselves) is that each new technology designed to squeeze out a source of fossil fuels we couldn't get before — oil sands, deepwater drilling, mountaintop removal, etc. — comes with ever increasing risks and tremendous external costs, often in the form of environmental degradation or threats to public safety or even the food supply.

And that's what was on my mind when I read this New York Times story of sound environmental science being massaged or ignored outright in favor of someone's gain:
When Congress considered whether to regulate more closely the handling of wastes from oil and gas drilling in the 1980s, it turned to the Environmental Protection Agency to research the matter. E.P.A. researchers concluded that some of the drillers’ waste was hazardous and should be tightly controlled.

But that is not what Congress heard. Some of the recommendations concerning oil and gas waste were eliminated in the final report handed to lawmakers in 1987.

“It was like the science didn’t matter,” Carla Greathouse, the author of the study, said in a recent interview. “The industry was going to get what it wanted, and we were not supposed to stand in the way.”

E.P.A. officials told her, she said, that her findings were altered because of pressure from the Office of Legal Counsel of the White House under Ronald Reagan. A spokesman for the E.P.A. declined to comment.
When are we going to wake up to this disaster?

All I can say is that if the United States will not lead, I'm glad South Korea is trying to make its own way down the green path. (Yeah, that sounds a tad corny.)

Wednesday, March 10, 2010

KAIST's wireless green bus strips

Reuters has an interesting article on some innovations in electricity-powered public transportation using "green technology" that requires no wires:
The country's top technology university on Tuesday unveiled a new electric transport powered by recharging strips embedded in roads that transfer energy through magnetic connections. There are no direct connections with wires.

Vehicles with sensor-driven magnetic devices on their underside suck up energy as they travel over the strips embedded a few centimeters (inches) under the road.

"The technological concept behind the idea has been around for about 100 years. We have found a better way to transfer the electricity to make it practical," said B.K. Park, a project member at the Korea Advanced Institute of Science and Technology.

The university about 140 km (90 miles) south of Seoul has four prototype buses using the technology on its campus and is in talks with Seoul and other cities to have buses running in the next three years using the system called "online electrical vehicle."

The strips, which are attached to small electrical stations, are laid in bus lanes and roads running up to intersections so that vehicles can power up where traffic slows down.

The strips are in segments of several tens of meters (yards) in length and vehicles receive what is termed "microcharges" each time they pass over one.

"These vehicles are not like mobile phones that need to be charged for hours. Microcharges are quite efficient," Park said.

Unlike electric lines used for trams, vehicles do not need to be in constant contact with the strips and a person can touch the lines without receiving a shock.

The system allows electric cars and buses to cut down on battery size and extend ranges.

The non-contact transfer of electricity, also called inductive charging, works by magnets and cables on the underside of the vehicle making a connection with the current in the recharging strip to receive power as they travel over it.
Electrically-powered public transport is nothing new, but buses and street cars that use this are tethered to dangerous electric lines above the roadway. If they can put such a wireless system in place in Korea's major cities, it frees up a the same system for more buses, which would cut pollution as well as reduce reliance on Korea's petroleum needs (which are almost all imported).

And at the end of the day, don't we all want to go to work in a choo-choo?

UPDATE:
The Korea Herald has a related story.