The four-book series Green Tech is an upbeat guide exploring fascinating technology from the past, present and cutting-edge of futuristic development that has the potential to help solve major ecolog
Our planet is in crisis. The way we live uses up more resources than Earth can produce. But all is not negative. If we change our habits with the help of new green technologies, we can turn towards ec
The world's most secretive state, North Korea is a tiny nation with a big voice on the world stage. Since its foundation in 1948, it has gained both friends and foes, and over the years has become inc
China has the world's longest international land border and the largest population. Governing a nation of this size and protecting its borders is a real challenge. The nation is rich in natural resour
