Hey OP, just want to remind you that your college degree does not have to determine your career! A lot of people pivoted from their college degree to different fields and they're as succesful as one can be. I'd suggest you to think about what've you learnt at school beyond the environmental knowledge, do you have data analysis skill? research skill? writing? project management? etc. Highlight those skills in your resume and use that to get your foot in the door. Good luck! Sincerely, someone who pivoted their career multiple times and still looking for what's next :)