A Texas start-up is using genetic engineering to revive that most iconic of extinct animals. But the woolly mammoth’s potential return sparks a number of ethical questions, says Tom Ough. Namely: which supermarket will line up to stock chunks of them first?

It is the shameful reality of America today that an estimated 2.2 million people Iive without running water. Senior climate correspondent Louise Boyle visits the Navajo Nation where 30 per cent of people lack this basic necessity

Cancellations may be the result of an accident, a financial snafu, or a change of management