Doctor of Philosophy — PhD | Yale School of the Environment

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</header> <div class="page-wrapper"> <main id="main-content" class="main-content"> <div id="block-yse-content"> <section class="hero section--global-spacing hero--no-img"> <div class="hero__background blue--xlight topographic-map"></div> <div class="grid-container"> <div class="card card--large card--hero card--stacked" > <div class="card__content"> <div class="card__content__inner"> <div class="grid-x grid-margin-x text-margin-reset"> <div class="initial-12 medium-8 cell"> <ol class="breadcrumbs"> <li> <a href="/academics">Academic Programs</a> </li> <li class="active">Doctoral Program</li> </ol> <h1>Doctor of Philosophy — PhD</h1> <div class="intro-text global-spacing--small"> <p>The doctoral program cultivates scholars who are equipped to understand and develop solutions to complex environmental challenges.</p> </div> </div> <div class="jump-nav-column initial-12 medium-4 cell"> <h2 class="eyebrow">On This Page</h2> <ol class="jump-nav" data-jump-nav-hide></ol> </div> </div> </div> </div> </div> </div> </section> <section class="program-overview global-spacing--default"> <div class="grid-container"> <h2>Program Overview</h2> <div class="grid-x grid-margin-x global-spacing--small"> <div class="initial-12 medium-8 cell"> <div class="more-less" data-more-or-less-intial-max-height="480" data-more-or-less-enable-at="window.innerWidth < 769"> <button class="more-less__toggle btn btn--standard btn--default" data-button-open-class-element=".more-less" data-button-open-text="Open Full Program Overview" data-button-close-text="Close Full Program Overview" data-button-open-class="more-less-open">Open Full Program Overview</button> <div class="more-less__content"> <div class="more-less__item"> <div class="wysiwyg"> <p>Doctoral students work with the school’s world-renowned faculty to collaboratively design cutting-edge research projects that engage them in scientific discovery, policy, public discourse, and action.  The five-year program is fully funded and independent of any faculty research grants, allowing doctoral students the intellectual freedom to explore the environmental issues that most inspire them. Students also have access to a broad array of resources across Yale University and its professional and graduate schools, including its faculty and library system.  Graduates complete the doctoral program having gained disciplinary depth and strong leadership skills that enable success in any career path — academic, government research, policy, nonprofits, and the private sector.</p> <p>Doctoral students at YSE receive five years of guaranteed funding, independent of any faculty research grants, allowing doctoral students the intellectual freedom to explore the environmental issues that most inspire them.</p> <p><a href="https://resources.environment.yale.edu/content/documents/00000685/Doctoral-Program-Handbook-2023-2024.pdf">Doctoral Program Handbook</a></p> <h2>Combined Doctoral Degree Programs</h2> <p><a class="btn" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="bb9c9be9-ebf1-4839-ae6d-cda45110373e" href="/academics/doctoral/combined-anthropology" title="Combined Doctoral Degree with Anthropology">Combined PhD — Yale Anthropology</a> <a class="btn" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="1178d4b0-94d1-40a0-9f8d-4522131c9190" href="/academics/doctoral/combined-nybg" title="Combined Doctoral Degree with the New York Botanical Garden">Combined PhD — New York Botanical Garden</a></p> </div> </div> </div> </div> </div> <div class="initial-12 medium-4 cell"> <div class="sidebar-program-content"> <h3 class="small-text"><strong>Degree Awarded</strong></h3> <p><span style='display: inline;'>Doctor of Philosophy</span> — PhD</p> </div> <div class="sidebar-program-content"> <h3 class="small-text"><strong>Program Duration</strong></h3> <p>5 Years</p> </div> <div class="sidebar-program-content"> <h3 class="small-text"><strong>Required Credit Hours</strong></h3> <p>N/A</p> </div> <div class="sidebar-program-content"> <h3 class="small-text"><strong>Additional Program Options</strong></h3> <div class="link-arrow--list"> <ul> <li><a href="/academics/doctoral/combined-anthropology" class="arrow-link">Combined PhD — Yale Anthropology</a></li> <li><a href="/academics/doctoral/combined-nybg" class="arrow-link">Combined PhD — NY Botanical Garden</a></li> </ul> </div> </div> </div> </div> </div> </section> <section id="why-choose-yse-" data-jump-nav-heading="Why Choose YSE?" class="two-up global-spacing global-spacing--xlarge paragraph--default two-up--why-yse blue--dark topographic-map global-padding global-padding--xlarge"> <div class="section-heading text-margin-reset" > <div class="grid-container"> <div class="grid-x grid-margin-x"> <div class='initial-12 cell'> <h2 class="section-heading__heading oho-animate oho-animate-single">Why YSE Doctoral Programs?</h2> </div> </div> </div> </div> <div class="grid-container"> <div class="grid-x grid-margin-x">  <div class="cell initial-12 medium-6 global-spacing--default"> <div class="card card--small card--two-up card--collapse" > <div class="card__media"> <figure class="global-spacing--small"> <div class="aspect-ratio-frame" style="--aspect-ratio: .56"> <img loading="lazy" src="/sites/default/files/styles/4x3z5_medium/public/content/images/4581/PhD-Research-Independence-Monk-2148-21.jpg?h=1d86ca3f&itok=OtaeWECn" width="800" height="600" alt="A PhD researcher in the field" class="image-style-_x3z5-medium" /> </div> </figure> </div> <div class="card__content"> <div class="card__content__inner"> <h3 class="serif">Research Independence and Funding</h3> <div class="global-spacing--xsmall"> <p><p>Doctoral students at YSE receive five years of <a href="/admissions/doctoral/apply#admission-and-funding-information">guaranteed funding</a>, independent of any faculty research grants, allowing doctoral students the intellectual freedom to explore the environmental issues that most inspire them.</p></p> </div> <div class='global-spacing--small link-arrow--list'> <ul> <li><a href='/academics/doctoral/dissertation-titles' class="link-arrow">Current Dissertation Titles</a></li> <li><a href='/admissions/doctoral/apply#admission-and-funding-information' class="link-arrow">Funding Information</a></li> </ul> </div> </div> </div> </div> </div> <div class="cell initial-12 medium-6 global-spacing--default"> <div class="card card--small card--two-up card--collapse" > <div class="card__media"> <figure class="global-spacing--small"> <div class="aspect-ratio-frame" style="--aspect-ratio: .56"> <img loading="lazy" src="/sites/default/files/styles/4x3z5_medium/public/content/images/4580/PhD-Commencement-3929-21.jpg?h=d7b1429f&itok=WmcJRKBx" width="800" height="600" alt="A cohort of 9 PhD graduates celebrating commencement" class="image-style-_x3z5-medium" /> </div> </figure> </div> <div class="card__content"> <div class="card__content__inner"> <h3 class="serif">Acclaimed Faculty</h3> <div class="global-spacing--xsmall"> <p><p>Working closely with some of the top experts in their fields is one of the advantages of a YSE doctoral degree. Our faculty are committed to mentoring the next generation of environmental leaders to tackle the world’s most urgent problems.</p></p> </div> <div class='global-spacing--small link-arrow--list'> <ul> <li><a href='/directory/faculty?phd=1' class="link-arrow">YSE Faculty</a></li> </ul> </div> </div> </div> </div> </div>  </div> </div> </section> <div class="grid-container"> <ol class="listing--cards grid--card grid-x grid-margin-x"> </ol> </div> <section id="student-and-alumni-spotlights" data-jump-nav-heading="Student and Alumni Spotlights" class="alumni-spotlight global-spacing global-spacing--xlarge"> <div class="section-heading text-margin-reset" > <div class="grid-container"> <div class="grid-x grid-margin-x"> <div class='initial-12 cell'> <h2 class="section-heading__heading oho-animate oho-animate-single">Student and Alumni Spotlights</h2> </div> </div> </div> </div> <div class="alumni-spotlight__inner"> <div class="slider-overflow-container"> <div class="swiper-container grid-container global-spacing--default"> <div class="swiper-wrapper"> <div class="card card--medium card--alumni-spotlight card--inline swiper-slide" style="min-width: 344px; "> <div class="card__media"> <figure class="global-spacing--small"> <div class="aspect-ratio-frame" style="--aspect-ratio: .75"> <picture> <source srcset="/sites/default/files/styles/4x3z3_xsmall/public/content/images/125/Eleanor-Stokes-NASA.jpg?h=605cb14b&itok=PjKnV6DH 480w, /sites/default/files/styles/4x3z5_medium/public/content/images/125/Eleanor-Stokes-NASA.jpg?h=605cb14b&itok=e8NgVAMg 800w" type="image/jpeg" sizes="100vw, (min-width: 769px) 760px" width="800" height="600"/> <img loading="lazy" width="800" height="600" src="/sites/default/files/styles/4x3z3_xsmall/public/content/images/125/Eleanor-Stokes-NASA.jpg?h=605cb14b&itok=PjKnV6DH" alt="Eleanor Stokes speaking on a NASA stage" /> </picture> </div> </figure> </div> <div class="card__content"> <div class="card__content__inner"> <h3 class="h4">Tracking Environmental and Infrastructure Damage in Ukraine</h3> <p>As co-leader of Black Marble, NASA’s light dataset, Eleanor Stokes <strong>'18 PhD</strong> is currently tracking the effects of Russian military strikes on Ukraine’s infrastructure and climate-induced natural disasters across the world. NASA’s Black Marble science team, which uses data from the Visible Infrared Imaging Radiometer Suite aboard NASA’s Suomi NPP satellite spacecraft  to map<a href="https://environment.yale.edu/news/article/eleanor-stokes-named-rising-star-for-leading-role-in-nighttime-satellite-imagery-project"> disaster impacts in vulnerable communities</a>, was awarded the 2020 NASA Group Achievement Award for helping realize the vision of the <a href="https://www.nasa.gov/press-release/nasa-partner-space-agencies-amass-global-view-of-covid-19-impacts">NASA-ESA-JAXA COVID dashboard</a> and enabling international partnership in a time of need.  “Humanity is facing major global risks from extreme weather and rising sea levels,” Stokes says. “It’s very important to have a satellite record that can speak to the human piece of the puzzle.</p> <div class='global-spacing--small link-arrow--list'> <ul> <li><a href='/academics/doctoral' class="link-arrow">Doctor of Philosophy — PhD</a></li> </ul> </div> </div> </div> </div> <div class="card card--medium card--alumni-spotlight card--inline swiper-slide" style="min-width: 344px; "> <div class="card__media"> <figure class="global-spacing--small"> <div class="aspect-ratio-frame" style="--aspect-ratio: .75"> <picture> <source srcset="/sites/default/files/styles/4x3z3_xsmall/public/content/images/133/Yufang-Gao-research.jpg?h=dc37da01&itok=ynr655Ay 480w, /sites/default/files/styles/4x3z5_medium/public/content/images/133/Yufang-Gao-research.jpg?h=dc37da01&itok=h2wpCXku 800w" type="image/jpeg" sizes="100vw, (min-width: 769px) 760px" width="800" height="600"/> <img loading="lazy" width="800" height="600" src="/sites/default/files/styles/4x3z3_xsmall/public/content/images/133/Yufang-Gao-research.jpg?h=dc37da01&itok=ynr655Ay" alt="Yufang Gao in the mountains" /> </picture> </div> </figure> </div> <div class="card__content"> <div class="card__content__inner"> <h3 class="h4">Redefining Human-Wildlife Conflict</h3> <p>In the Tibetan Plateau, <strong>Yufang Gao ’14 MESc, ’23 PhD</strong> interviews, observes, and travels with Tibetan herders and Buddhist monks. He sets up camera traps and collects scat to analyze the diet of snow leopards. And he has hiked a mountainside 15,000 feet above sea level — all in pursuit of data for his dissertation focused on the quest for harmonious coexistence between people and large carnivores. What is needed for human-wildlife coexistence is a different perspective about conflict, Gao says. “Conflict,” he has found, “is part of coexistence.”</p> <div class='global-spacing--small link-arrow--list'> <ul> <li><a href='/academics/masters/mfs-mesc' class="link-arrow">Master of Environmental Science - MESc</a></li> <li><a href='/academics/doctoral' class="link-arrow">Doctor of Philosophy — PhD</a></li> </ul> </div> </div> </div> </div> <div class="card card--medium card--alumni-spotlight card--inline swiper-slide" style="min-width: 344px; "> <div class="card__media"> <figure class="global-spacing--small"> <div class="aspect-ratio-frame" style="--aspect-ratio: .75"> <picture> <source srcset="/sites/default/files/styles/4x3z3_xsmall/public/content/images/25/Rich-Guldin-800.jpg?h=52605a11&itok=NuGE65q1 480w, /sites/default/files/styles/4x3z5_medium/public/content/images/25/Rich-Guldin-800.jpg?h=52605a11&itok=pshdCakI 800w" type="image/jpeg" sizes="100vw, (min-width: 769px) 760px" width="800" height="600"/> <img loading="lazy" width="800" height="600" src="/sites/default/files/styles/4x3z3_xsmall/public/content/images/25/Rich-Guldin-800.jpg?h=52605a11&itok=NuGE65q1" alt="Rich Guldin leaning against a tree in the forest" /> </picture> </div> </figure> </div> <div class="card__content"> <div class="card__content__inner"> <h3 class="h4">Tracking Forest Inventory</h3> <p><strong>Richard Guldin ’76 MFS, ’79 PhD</strong> has helped reinvent the U.S. Forest Service’s Forest Inventory and Analysis (FIA) program by integrating new sampling designs, field procedures, and innovative software to create an annual inventory that has become a global model. His work earned him the Society of American Foresters’ Sir William Schlich Award.</p> <div class='global-spacing--small link-arrow--list'> <ul> <li><a href='/academics/doctoral' class="link-arrow">Doctor of Philosophy — PhD</a></li> <li><a href='/academics/masters/mfs-mesc' class="link-arrow">Master of Forest Science — MFS</a></li> </ul> </div> </div> </div> </div> </div> <nav class="slider-navigation"> <button class="slider-navigation__prev btn btn--inverse"><i class="far fa-chevron-left"></i><span class="show-for-sr">Go to the previous slide.</span></button> <button class="slider-navigation__next btn btn--inverse"><i class="far fa-chevron-right"></i><span class="show-for-sr">Go to the next slide.</span></button> </nav> </div> </div> </div> </section> <section id="program-contacts" data-jump-nav-heading="Program Contacts" class="contact global-spacing global-spacing--xlarge"> <div class="contact-text-and-card grid-container"> <div class="grid-x grid-margin-x"> <div class="contact-text-and-card_text cell medium-5 large-6"> <h2>Contact the Doctoral Program</h2> <div class="global-spacing--small"> <p>Elisabeth Barsa is the contact for students interested in the YSE doctoral program.</p> </div> </div> <div class="cell medium-7 large-6"> <article class="contact-card"> <div class="aspect-ratio-frame" style="--aspect-ratio: 1.323"> <a href="/directory/staff/elisabeth-barsa" hreflang="en"> <img loading="lazy" src="/sites/default/files/styles/446x558/public/content/images/5548/Barsa_Elisabeth_2016_344x430_web.jpg?itok=7WYtWCum" width="448" height="560" alt="Elisabeth Barsa" class="image-style-_46x558" /> </a> </div> <div class="contact-card--text"> <h2> Elisabeth Barsa </h2> <div class="global-spacing--3xsmall"><p>Doctoral Program Coordinator</p></div> <div class="global-spacing--medium"> <div class="contact-card__email"> <a href="mailto:elisabeth.barsa@yale.edu">elisabeth.barsa@yale.edu</a> </div> <div> <span class="contact-card__phone"> <a href="tel:203-432-5146">203-432-5146</a> </span> </div> </div> </div> </article> </div> </div> </div> </section> <section id="admissions-and-funding-information" data-jump-nav-heading="Admissions and Funding Information" class="global-spacing global-spacing--xlarge flexible-wysiwyg" > <div class="grid-container"> <div class="grid-x grid-margin-x"> <div class="cell medium-10 medium-offset-1 large-8 large-offset-2"> <div class="wysiwyg wysiwyg--full wysiwyg-column--center"> <h2 id="admissions-and-financial-aid">Admissions and Funding Information</h2> <p>Our doctoral program offers scholars from diverse backgrounds the opportunity to pursue a highly individualized area of inquiry under the mentorship of a YSE faculty member. The research conducted by YSE PhD candidates spans global and disciplinary boundaries — and what’s more, it is fully funded.</p> <p>Doctoral students at YSE receive 5 years of guaranteed funding. Funding packages consist of <a href="https://gsas.yale.edu/resources/graduate-financial-aid/phd-stipends">a stipend</a>, full tuition coverage, and health insurance. For more information on funding and benefits for doctoral students at Yale, visit the Graduate School of Arts and Sciences' <a href="https://gsas.yale.edu/resources-students/finances-fellowships/stipend-payments">stipend payments</a> and <a href="https://gsas.yale.edu/resources?type_support=10&category=51&sort_bef_combine=featured_DESC&sort_by=featured&sort_order=DESC">financial support</a> pages.</p> <p><a class="btn" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="84ef85d8-02bb-4666-b76c-c8c3561cc54c" href="/admissions/doctoral/apply" title="How to Apply to the Doctoral Program">Apply to the PhD Program</a></p> </div> </div> </div> </div> </section> <section class="more-in-this-section global-spacing global-spacing--xlarge"> <div class="grid-container oho-animate-sequence" data-animation-delay="50"> <div class="grid-x grid-margin-x"> <div class="cell medium-4 medium-offset-1"> <h2 class="eyebrow--large">Related Items</h2> </div> <div class="cell medium-7"> <article class="mits__related wysiwyg"> <ul> <li><a href="/directory?role%5B25%5D=25&ft=">PhD Student Directory</a></li> <li><a href="/admissions/doctoral">Doctoral Admissions</a></li> </ul> </article> </div> </div> </div> </section> </div> </main> </div> <div class="bottom-nav "> <div class="bottom-nav__container"> <div class="bottom-nav__panels grid-x"> <div class="cell medium-auto"> <div class="bottom-nav__menu bottom-nav__panel"> <section id="more-in-this-section" data-jump-nav-heading="More in this Section" > <nav id="bottom-nav-menu" class="bottom-nav-menu accessible-menu " data-menu-open-text="Open the %s submenu" data-menu-close-text="Close the %s submenu"> <h2 class="bottom-nav-menu__heading"> <span>Keep Exploring: <a href="/academics" class="menu-item--active-trail" data-drupal-link-system-path="node/28">Academic Programs</a></span> </h2> <div class="bottom-nav-menu__container global-spacing global-spacing--medium"> <ul data-region="footer_upper" class="menu"> <li 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