A report on the cause of the helicopter crash in Glasgow in December has found that both engines flamed out before the helicopter hit the ground.
The investigating team also concluded that the main rotor and tail rotor blade were not rotating at the moment of impact, and that no fuel leaked from the aircraft before it crashed.
More top news
Temperatures will remain close to freezing.
The prime minister's announcement came as international leaders gather in Paris on the second anniversary of the climate change plan.
Prime Minister Theresa May said in October the Government will shift towards an organ donation system in England which presumes consent.