The World Population Prospects 2019: Highlights, estimates that the next 30 years will see the global population add an extra 2 billion people to today's figure of 7.7 billion, and, by the end of ...

A new way of estimating rural populations has found that we may be undercounting people who live in these areas, potentially ...

discuss five challenges we'll need to overcome to vaccinate billions of people around the world. Hear more on BBC Health Check. Video by Jennifer Green Expert says that tariffs could make up as ...

Scientists think that by 4.3 billion years ago, Earth may have developed conditions suitable to support life. The oldest known fossils, however, are only 3.7 billion years old. During that 600 million ...