Urban Planning - What is civil engineering and what is urban planning?

What is civil engineering and what is urban planning?

I'm looking at what I want to major in at college (I'm a sophomore in high school), and what I want to pursue for a career. I ran across a profession called civil engineering, and another one called urban planning. What do civil engineers and urban planners do? What are the differences between the two? By the way, I read about those professions through an article about lucrative jobs in the environmental or "green" field.

Public Comments

civil engg.is an ug course.urban planning is a pg course specialised in urban/rural planning etc.
Civil engineers work on the details of building projects (could be buildings, bridges, or something else)...how many columns will it need, how far apart should they be, what type of concrete should be used, what would happen to it in the event of an earthquake, etc. Urban planners work on creating and evaluating more general plans for how cities should look and function...they might develop ideas like making a certain street pedestrian-only or banning buildings over four stories high in a certain neighborhood.