Gates nuclear start-up raises $35m

TerraPower, a nuclear energy start-up backed by Microsoft chairman Bill Gates, has raised $35m (£23.7m) in a new round of funding to aid the development of a reactor fuelled by nuclear waste. Concerns about global warming and efforts to reduce carbon emissions have sparked renewed interest in nuclear energy as a clean fuel, but the difficulty of disposing of spent uranium and fear of accidents have made the technology controversial.