I'm an environmental engineer. I care about the effects of environmental factors on the human population. 
That's an interesting job. What kind of qualifications do  you need?
Numerous qualifications are required like experience in recycling and waste water management.
Do you need a Master's degree in college?
I'm not sure, but they do study the effects that technology has on the environment.
How do they study that?
They try to find out how to control human waste and preserve energy.
That's very important. We are abusing the environment currently.
I agree, and through science and technology we can address these problems.
I sure hope so. It's scary to think about the Earth being unliveable possible one day.