Our extravagance is shocking, and alternatives are not easy, but here are some useful ideas

From lightweight surveillance devices to heavily armed attack weapons, pilotless aircraft are rapidly becoming a favoured tool of warfare. But are they accurate? Ethical? Here to stay?

We examine where daylight saving time came from and why it doesn’t actually save daylight at all

It’s a natural part of the female life cycle – so why don’t we talk more about the menopause, its debilitating effects and possible mitigation?

It is available in a growing number of countries – but not the UK, where remains outlawed

As the holiday season approaches, we look at the rise and rise of tourism and find out where the world’s 1.4bn international travellers go on vacation

It has become central to economic planning, yet some think our priorities should be more sustainable