Replying to Winter Internship

Hey guys, I already did a similar thread a while ago, but didn't really get any good responses to it. I am looking for a company/organization in the field of environmental protection that offers internships to foreign students (I am from Germany)in the upcoming winter semester (starting jan 1st up to mid of march). Duration of the internship should be anything above 4 weeks. I am currently studying to become a "safety engineer" with focus on environmental protection. It would be awesome if one of you guys would know a place within the US (or Canada) that would offer such a thing. I tried finding something with the help of my university, but they only have contacts to other American universities, not companies or organizations. I also tried finding stuff on my own, but it appears to pretty damn hard to find something like that using the internet. +k for all legit responses! pm me if you need more details!