This is my dream: To live as my forefathers once did - in harmony with the land that sustains us. A project to investigate and innovate the creation of a low impact home with methods of living in a form of permaculture designed to sustain my family and improve biodiversity. To leave the land richer than before and in doing so enable others to do so.
How Green Are Green Cars?
Posted 30/10/08 by Matt B in the Urban category
In today's guest post Charles Cridland takes a critical look at "Green Cars" and asks how green are they realy?How Green Are Green Cars?
By Charles Cridland
With the issue of global warming taking on international importance in recent years, unsurprisingly the focus has fallen on car drivers, with cars seen as one of the major contributors towards global warming. Green cars have been held up as a potential solution, one that motorists should be embracing.
But are green cars actually 'green'?
Firstly, let’s take pure electric cars. Unfortunately these electric cars are anything but good for the environment. The electricity that they run on is produced in power stations, where only 30-40% of the energy is converted into electricity. Transferring this electricity along electric cables then results in a further 30% being lost to heat energy. So by the time this electricity reaches an electric car a huge amount of the energy has already been lost. Good for cutting down inner city pollution but efficient it certainly isn’t.
Recently hybrid cars have been preferred, cars that contain both an electric motor and a petrol engine. The battery for the motor is powered by the energy generated from braking. When it comes to being ‘green’ these cars in theory offer many more environmental benefits.
In practice this isn’t necessarily the case. Consumer magazine Which? tested four hybrid cars by driving them throughout London. The results were disappointing, as mentioned by George Marshall-Thornhill, senior researcher for Which?, “Some of these should have performed much better.” And this is all without mentioning how to dispose of troublesome electric batteries.
Then there’s the cost of hybrid cars. The Toyota Prius is the most popular hybrid car and can be purchased for around £17,000. However, with fuel economy claims in doubt and 55% of people believing that green cars are too expensive, there is still some way to go before green cars arrive on a large scale.
The facts are that green cars use more energy to produce, are harder to dispose of, their fuel economy claims have been doubted, and they are simply too expensive. The age of the green car has not arrived yet.
About the Author: Charles Cridland founded the car parking site YourParkingSpace.co.uk, where you can rent a parking space or find a parking space or garage to rent.
Source: www.isnare.com
Permanent Link: http://www.isnare.com/?aid=122096&ca=Automotive
Source: www.isnare.com
Permanent Link: http://www.isnare.com/?aid=122096&ca=Automotive
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