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Plastic bags less damaging to environment

plastic bags may not be as bad for the environment as previously assumed, and may in fact be better than their “eco friendly” alternatives, government research suggests.

A draft report for the Environment Agency showed that the production of high density polythene (HDPE) bags used by shops had less impact on the climate than cotton or paper bags.

The report was commissioned in 2005 and due to be published in 2007, but has still not been released.

The findings suggest that, in order to balance out the impact of each lightweight plastic bag, consumers would have to use the same cotton bag almost 200 times, or use paper bags at least three times.

It found that an HDPE plastic bag would have a baseline global warming potential of 1.57 kg Co2 equivalent, falling to 1.4 kg Co2e if re-used once, the same as a paper bag used four times (1.38 kg Co2e).

A cotton bag would have to be re-used 171 times to emit a similar level, 1.57 kg Co2e.

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