Human head and brain transplants are now feasible. That's according to Italian neurosurgeon, Sergio Canavero who believes he has worked out how to transfer the head of one human on to the body of another.
Forty years after their wedding, and a decade after they shared one of the most flamboyant public embraces in political history, the former US Vice President Al Gore and his wife Tipper have announced they are to separate.
As he publishes a new book, critics say climate change has made him rich
Do you recycle? Avoid flying? Maybe you think buying local makes more of a difference? In an exclusive poll, our readers shared their views on the greatest issues of our time. Michael McCarthy introduces the results