Writing in The Daily Telegraph, the Prime Minister said the process would not damage the countryside and cause only "very minor change to the landscape".
He added that it has "real potential to drive energy bills down" and insisted that the Government was not "turning our back" on low carbon generation but needed to secure a mix of energy sources.
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Speaking to ITV News Foreign Office minister Tobias Ellwood said education was the greatest weapon in the fight against extremism.
A review of the law is being considered after a cyclist who crashed into and killed a mother-of-two was convicted using a Victorian law.
Rain affects many western areas overnight with some heavy bursts at times.