• <a href="/live/image/gid/690/width/650/93065_image0.jpg" class="lw_preview_image lw_disable_preview" tabindex="-1"><picture class="lw_image lw_image93065"> <source type="image/jpeg" media="(max-width: 500px)" srcset="/live/image/gid/690/width/500/height/479/crop/1/93065_image0.rev.1646775770.jpg 1x, /live/image/scale/2x/gid/690/width/500/height/479/crop/1/93065_image0.rev.1646775770.jpg 2x, /live/image/scale/3x/gid/690/width/500/height/479/crop/1/93065_image0.rev.1646775770.jpg 3x"/> <source type="image/jpeg" media="(min-width: 501px)" srcset="/live/image/gid/690/width/720/height/690/crop/1/93065_image0.rev.1646775770.jpg 1x, /live/image/scale/2x/gid/690/width/720/height/690/crop/1/93065_image0.rev.1646775770.jpg 2x"/> <img src="/live/image/gid/690/width/720/height/690/crop/1/93065_image0.rev.1646775770.jpg" alt="Our students—especially those in our natural science classes—regularly learn outside of the classroom on field trips, like this recen..." width="720" height="690" srcset="/live/image/scale/2x/gid/690/width/720/height/690/crop/1/93065_image0.rev.1646775770.jpg 2x" data-max-w="1800" data-max-h="1798" loading="lazy"/> </picture> </a><div class="hero-split_image_caption collapsable-caption"> Our students—especially those in our natural science classes—regularly learn outside of the classroom on field trips, like this recent excursion to Rattlesnake Road Wind Farm in Oregon. Photo taken by Olivia Bruce BA ’24.</div>

Earth system science (ESS) provides a way to engage with the science of some of today’s most pressing questions: How do changes in atmospheric composition affect climate? How do shifts in global land cover affect nutrient loading of the world’s waters or the abundance and distribution of different life forms? The study of ESS focuses on key Earth components, including the slowly churning rocky substrate, the liquids circulating through and atop it, the patches of ice crowning its nether reaches, the thin envelope of air surrounding it, and the organisms that populate its surface. In our minor, you’ll use connections across scientific disciplines to develop a framework for understanding large-scale transformations of our planet and their consequences, and you’ll graduate with experience in the physical, chemical, biological, and geological processes that drive planetary functions, offering valuable professional training with diverse practical applications.

  • My favorite class is Evolution because I learned something fascinating and new every day in that class.

    Sofia Reeves BA ’23
    Biology | Gender Studies | Sacramento, California
    More about Sofia
  • Lewis & Clark has given me a space where I can discover who I am and who I want to be without worrying about what everyone else might think.

    Dakota Kennedy BA ’19
    Chemistry | Monument, Colorado
    More about Dakota
  • As part of the planning committee for the ENVX Symposium, I have the opportunity to meet with passionate, inspiring, and driven peers who are engaged in the environmental movement.

    Francisco Perozo BA ’23
    Environmental Studies | Art and Art History | Caracas, Venezuela
    More about Francisco