I am very interested in the field of environmental engineering. Do you know anything about it?
Yeah not to toot any horns but I know a bit about it.  Environmental engineering at its core is the practice of engineering various things of relationship to the environment such as to protect humans from environmental issues for example.
Wow, that is a very informed answer. In what ways does environmental engineering protect humans?
Well if you think of the environment not only as nature but as human created too, one scope of it includes engineering proper waste water management and air pollution control.
That makes a lot of sense to me. It is good practice to take care of the environment that we live in. DO you work in this field?
No I do not.  But I don work in the environment of the comfort of my home.  Sorry bad joke.
That is pretty funny. I also do not work in this field, but I would consider ways to help out the cause.
There's many ways to help!  This form of engineering is also concerned with proper sanitation in urban and rural areas.  I guess by being a conscientious citizen you help.  Try not to flush grease down the sink and clog up the city pipes :).