I also will recommend that you try Middlebury and a few other “full need met with loans”. Middlebury in particular is both really strong in environmental science, and is trying to increase minority enrollment. So if you are accepted, there is a good chance that they may meet all need without loans.
While your family is likely making too much for you to qualify for Questbridge, is your city a Posse city (Boston, NYC, DC, or Philadelphia and Newark for the virtual program), and is your school a public school? While you usually have to be nominated by your school, you can always ask your counselor to get your school nominate you. It only covers tuition, but full need met college which are Posse partners will usually cover the rest.