Ms Liley said that she believed "environmental pollution from wood recycling is not good for your health".

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The authors say they had to consider the implications for energy policy following a report from the Royal Commission on Environmental Pollution.

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Meanwhile, environmental attention switched from resources to pollution.

ECONOMIST: Plenty of gloom

The data used came from a daily monitoring of pollution levels recorded from 2007 through 2009, as collected by the Environmental Protection Agency (EPA).

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Data from the US Environmental Protection Agency were used to work out levels of pollution for addresses in California.

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Hydrogen has the virtue of removing the auto industry from the environmental debate, even if it creates the same or more pollution upstream.

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Environmental health officers from Blaenau Gwent council told the meeting that monitoring suggested air pollution was not at a critical level, but this would continue.

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But they also voiced frustration that their communities are still suffering from the impacts of decades of pollution, and pledged to keep pressing until they see environmental justice achieved.

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