Deputy Prime Minister Nick Clegg is planning to visit the North East later this week to promote green jobs in the wake of Lord Howell's gaffe.
The former Government energy adviser suggested fracking could be used in "desolate" north east England without any impact on the surrounding environment.
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Scientists have unveiled high-tech plans to preserve ancient sites in the Middle East at risk of destruction by the so-called Islamic State.
More is needed to help overcome poverty and inequality in New Orleans, 10 years after Hurricane Katrina devastated the area, Obama has said.
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