About Me

Hi, I’m Gabi!

I’m a geochemist, a freelance science writer, and a patient advocate based in Boston. I earned my PhD in marine geology and geophysics from the MIT-WHOI Joint Program in August 2020.


My primary research is in the MIT McGee Lab, which focuses on ancient climate records. I study past rainfall changes in Mexico using stalagmites. I defended my PhD in early August, 2020, and will be transitioning to a part-time postdoc position in the same lab.

Before grad school, I earned my BA in Earth and Oceanographic Science at Bowdoin College. Follow me on Twitter and Instagram to see what I’ve been up to in lab (or at home!) lately.

Headshot of Gabi. She's a blonde woman smiling in front of a blurry background
Image credit: Fatima Husain


I am passionate about science communication in all formats. I mostly focus on freelance writing and editing, from short news pieces to op-eds. I also have some info available about my major outreach projects, including a book I am co-editing! Let’s collaborate on a science communication project – feel free to get in touch with me!

Workshops and Speaking

My full academic CV is available here (updated Summer 2020), and my resume is available here. You can see what upcoming events I will be speaking at or attending, or check out links to my published writing. I am available to give talks or facilitate workshops on social media, communicating about climate, or addressing issues of accessibility in STEM for people with disabilities.

More info

My name is pronounced GAH-bee, not Gabby, because I’m Mexican-American and that is the pronunciation in Spanish. It’s the same “a” sound as taco and flan! I use both of my last names, without a hyphen (Ser-AH-toe Marks)! My pronouns are she/her/hers.