Both the VML and Speedway Landfill produced methane gas, but the VML produced a greater quantity of methane gas because of the nature of the materials deposited.

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The quantity and quality of fresh and locally produced goods, however, is a compensation.

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Here the maths is unambiguous - we have insufficient budget for the carbon we are already emitting and by the time shale gas is produced in any quantity (five to 10 years), there will be no emissions space left for it.

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If food is a factor in rising obesity levels, this is due to the quantity being eaten, and the way it is consumed, rather than the way it is produced.

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