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"In an oil and gas field, high resolution could be the difference between isolating the methane emissions from an oil well head from an adjacent pipeline," he says.

In June the UK Supreme Court ruled in a separate case, involving plans to drill an oil well near London's Gatwick Airport, that both types of emissions should be included in an environmental impact assessment.

“If a company is drilling for oil in California, they should be responsible for cleaning and closing that oil well,” she said.

Today’s judgement relates to the Horse Hill oil well in Surrey.

“When you ask a person what belongs in a community, not a lot of people will say an oil well.”