Venture-backable climate startups span everything from alternative plastics and water filtration to building materials and green chemicals. Over the past few months, I’ve helped Propeller recruit and screen founders for its 7th Ocean MBA cohort. The work was both a crash course in emerging technologies and an introduction to the tenacious founders bringing them forward. As I head back to the classroom, here are a few takeaways from that experience:

Each year, our friends at CTVC release the iconic “climate market map”—a crisp snapshot of where innovation and capital are flowing across seven key sectors: Energy, Transportation, Food and Ag, Industry, Built Environment, Carbon, and Climate Risk. It’s a roadmap for founders, funders, and policymakers navigating the fast-moving world of climate tech. But climate is redefining these industries. The lines between sectors are fading, the tech is more advanced, and one critical resource is still flying under the radar: the ocean.

Today, Propeller pushed an update to our website, revealing for the first time the portfolio we’ve been busy building. It’s an exciting day for us because what makes our work so satisfying is backing founders and the important work they’re doing.

Here’s a quick profile on how we invest at Propeller for founders seeking funding or for investors seeking to syndicate with us. Note: We’re speaking generally here. We sometimes draw outside the lines.

A few weeks ago, I had the opportunity to attend The World Ocean Summit hosted by Economist Impact as part of my ClimateCap Fellowship and on behalf of Propeller as their MBA Venture Capital intern. A few weeks later, I’ve now had time to reflect on my experience at the Ocean Summit, and look back on main takeaways from the keynote speeches, panel discussions, and meet and greet conversations. In doing so, I have pulled together the key themes I feel were central to the summit and are critical to achieving a sustainable blue economy.