UN chief warns of 'point of no return' on climate change

U.N. Secretary-General Antonio Guterres said Sunday that the world's efforts to stop climate change have been "utterly inadequate" so far and there is a danger global warming could pass the "point of no return."

How to cut queues at immigration – with maths

When going on holiday to a foreign country, there's one part of the journey that everybody dreads: border control. Everyone has to have their passport checked by an immigration official when entering a new country – and ...

ID card can learn lessons from history

(PhysOrg.com) -- Identity theft is increasingly prevalent in today's society, yet we have repeatedly failed to develop a reliable technology of identification to prevent misuse and forgery.