In Engineering 202 Class

Today I thought I'll take a picture while sitting in class. This morning I had an ENGR 202 class, which is dealing with environmental issues. We are learning things such as greenhouse gases, renewable energies, and things like that. Today I had to turn in a paper whose topic was : When and what will happen when the world will be running out of crude oil ? Hum... interesting topic, based on some data, charts and tables from my text book, my answer was by 2100 but frankly, who really knows the answer of that question ?