Summary:
London is trying to use the recycled rubber for electricity. They say that 1 step will make the machine near there have electricity, so it will save our environment and not waste use electricity.
Response:
IT was a great idea to save our environment, but about using that for electricity for the long time it may not be a good idea for using it. Like you see, population density is grow very fast and they need to use electricity for there life so just 1 step will make electricity will not a good idea for save all the environment for 1 country.
