The past century is only a fraction of the time that people have existed in the world, but we have done more to change the planet in that time than in all of history before that. International trade, air travel, and the Internet have made it possible for someone to be surrounded by products, people, and information from thousands of miles away. This lesson will explore the positive and negative effects of globalization, focusing on the students’ place in a world that faces tremendous environmental challenges and is changing extremely quickly.