18:13 The Minister of State, Department for Environment, Food and Rural Affairs (Mr James Paice)

Tipping at landfills is carried out to achieve optimum waste densities in a site, so that its slopes are stable and encourage even settlement of the contours over time. Many factors, such the nature of the waste and the moisture content, determine the rate of landfill gas production. It is not just the issue of pressure, which my hon. Friend mentioned. It is important to capture and treat landfill gas—first, because it reduces the harmful greenhouse gas emissions of methane, and secondly, because it is a form of energy recovery from waste that can be utilised.

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