Bigger than the O2: giant greenhouses to grow 20 tonnes of tomatoes a day

Low-carbon structures fed by water treatment plants can grow 10% of homegrown crop

People in Britain will soon be able to feast on tomatoes grown with the help of a water treatment plant in what backers say is a world first.

One of the UK's largest clean energy funds has revealed plans to invest 120m in a pair of low-carbon greenhouses in Norfolk and Suffolk, in eastern England, large enough to grow 10% of the UK's homegrown tomato crop.