Your husband is a PhD student in ecology? That's awesome. What type of fields are available to a person with that degree?
His PhD will be in biology / ecology. Mine will be in Environmental Anthropology. Most likely we will teach at a college or university while also doing research, but we could also work for government agencies or NGOs as well. His undergrad was in Environmental Studies / Life Science. He had planned to go to work for someplace like the state game and parks with a B.S., but his professors practically ordered him to go get a PhD.
He did a summer at Cedar Creek Natural History Area, which is an LTER (Long Term Ecological Research) site
http://www.lter.umn.edu/
and met the PhDs working at the urban LTER site in Phoenix (all of metro Phoenix is an LTER), and decided to go to grad school here.
http://caplter.asu.edu/
The environment is a big field, with lots of different career options. One of the cool things happening in the study of the environment are some IGERT (Integrated Graduate Education, Research and Training) programs. This is an NSF funded program where grad students from multiple departments, science, social science, etc, work together (something sorely lacking in most grad programs). There are IGERTs on multiple subjects, and there are a few around the country that are studying the environment. ASU's program is in Urban Ecology.
http://ces.asu.edu/igert/
We're pretty new to grad school, but we're always willing to 'talk shop'...I think my personal messaging is working...let me know and I'll send you my school email addy if you want.
Liz