Download or read book Confronting Future Challenges written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 21st century, the Earth's surface is being reshaped and reorganized on a scale unprecedented at any other time in the planet's history. It is a change directly caused by humans. In program eight Alec Murphy investigates why geographical concepts and insights are critical to the effort to confront the challenges of our ever-changing planet as its population grows to a staggering 10 billion people in the 21st century.