1. Focus 5/8 Science and technology have both changed the world. Advances in navigation lead to the Columbian Exchange in the 14 and 1500s. The Scientific Revolution introduced the world to the scientific method and the Green Revolution increased farm output. Today, social media has increased the exchange of information and also has led to revolutions in the Middle East.

2. Science and Technology

3. Green Revolution – scientists begin to apply technology to increase food production. Green Revolution – scientists begin to apply technology to increase food production.

4. Science and Technology Green Revolution Green Revolution - Irrigation – use of pumps to bring water from far beneath ground - Machinery – use of gas/diesel powered machines - Fertilizer and Pesticides - New varieties of grain and livestock

5. Science and Technology By 1960s developing countries begin to increase production of wheat and grain By 1960s developing countries begin to increase production of wheat and grain * India doubles food output due to Green Revolution

6. Science and Technology Limits to Green Revolution Limits to Green Revolution - Population growing faster than food production - Some regions lack natural resources - New technology costs money - Politicians stand in the way

7. Science and Technology Information Revolution – THE INTERNET!!! Information Revolution – THE INTERNET!!! - Google - FaceBook - YouTube - Twitter

8. Science and Technology Medical Technology Medical Technology - Advances 1. Antibiotics 2. Vaccines 3. Transplants 4. Laser Surgery

9. Science and Technology Challenges to Medicine Challenges to Medicine 1. Aids/HIV – especially in Africa 2. Drug-Resistant Microbes 3. Destruction of Rain Forests – Especially in Brazil – Rainforests are home to many medicinal plants

10. The Environment Pollution and Climate Change Pollution and Climate Change - Acid Rain - Depletion of Ozone Layer - Global Warming - Desertification – Africa - Deforestation - Brazil