I need to write a research paper on any soil topic.... anyone have any good or interesting ideas for a topic????

hello!

ive been considering perusing a masters degree in earth sciences, but im unsure what that would look like or if it would be worth it. is there a specific line of work where employers would really prefer a masters degree? i dont want to put myself even more in debt than i already am, but i do want to give myself the best possible shot at a career— and feel that my bachelors might be stopping too early. i have particular interest in GIS and climate related jobs!

thank you for any help at all!