Briefly describe the major technological achievements of the twentieth century and how standard of living has been improved for many people

Briefly describe the major technological achievements of the twentieth century and how
standard of living has been improved for many people. When and how did impacts of
population pressure and technology on the environment first start to be recognised?
The world s estimated carrying capacity is 5 billion people, but in late 2011, world
population exceeded 7 billion. What is your view on population growth? Please include the
political, economic, philosophical and legal implications of any points you make.