College of Agricultural and Environmental Sciences Content / College of Agricultural and Environmental Sciences Content for UC Davis en Community Development Students Impact Policy as Part of Class /majors/blog/community-development-students-impact-policy-part-class <p><span><span><span><span><span><span>In Associate Professor <a href="https://humanecology.ucdavis.edu/catherine-brinkley">Catherine Brinkley</a>’s class, students don’t just learn about policy — they help to change it.&nbsp;</span></span></span></span></span></span></p> September 07, 2021 - 1:40pm Rebecca D Huval /majors/blog/community-development-students-impact-policy-part-class New Field of Ecological Medicine Emphasizes Health Benefits of Connectedness /news/new-field-ecological-medicine-emphasizes-health-benefits-connectedness <p>Ecological medicine is a new approach to health science that draws on a very old idea: connecting with each other, with animals and plants, and with the natural world fosters health and well-being for people and the planet.&nbsp;</p> November 25, 2025 - 10:48am Andy Fell /news/new-field-ecological-medicine-emphasizes-health-benefits-connectedness How Does a Parasitic Nematode Infect a Wide Variety of Plants? /blog/how-does-parasitic-nematode-infect-wide-variety-plants <p>Nematologists at the University of California, Davis, <span>including </span><a href="https://nemaplex.ucdavis.edu/General/Biographies/VMWilliamson.htm"><span>Valerie Williamson</span></a><span>, professor emerita in the Department of Plant Pathology&nbsp;and associate professor </span><a href="https://entomology.ucdavis.edu/people/shahid-siddique"><span>Shahid Siddique</span></a><span>, Department of Entomology and Nematology,&nbsp;</span>have long wondered how the <span>the Northern root-knot nematode (</span><a href="https://en.wikipedia.org/wiki/Northern_root-knot_nematode"><em><span>Me</span></em></a></p> November 19, 2025 - 10:54am Andy Fell /blog/how-does-parasitic-nematode-infect-wide-variety-plants Fossil Fuel CO2 Emissions Hit Record High in 2025 /climate/blog/fossil-fuel-co2-emissions-hit-record-high-2025 <p>Global carbon emissions from fossil fuels are projected to rise by 1.1% in 2025 – reaching a record high, according to new research by the <a href="https://globalcarbonbudget.org/">Global Carbon Project</a>.</p> November 13, 2025 - 3:27pm Katherine E Kerlin /climate/blog/fossil-fuel-co2-emissions-hit-record-high-2025 UC Davis Chancellor May Leads Delegation to Kenya to Advance California–Kenya Climate and Trade Partnership /news/chancellor-may-leads-delegation-kenya-advance-california-kenya-climate-and-trade-partnership <p><span>UC Davis Chancellor Gary S. May led a delegation to Kenya this week to advance a landmark partnership between the State of California and the Government of Kenya focused on climate action, clean transportation, climate smart agriculture, public health and innovation. Chancellor May was joined by Samuel Assefa, director of the Governor’s Office of Land Use and Climate Innovation, as well as several ³Ô¹ÏºÚÁÏ representatives. The delegation was jointly organized by UC Davis Global Affairs, Institute of Transportation Studies and the Office of the Special Envoy on Climate of Kenya.</span></p> November 13, 2025 - 1:06pm Katherine E Kerlin /news/chancellor-may-leads-delegation-kenya-advance-california-kenya-climate-and-trade-partnership How Climate Change Brings Wildlife to the Yard /climate/news/how-climate-change-brings-wildlife-yard <p>As climate change increases the frequency of droughts, UCLA and UC Davis researchers found one overlooked side effect: People report more conflicts with wildlife during drought, when resources are scarce.</p><p>For every inch that annual rainfall decreases, scientists found a 2% to 3% increase in reported clashes with a variety of carnivores during drought years, according to <a href="https://www.science.org/doi/10.1126/sciadv.adx0286">a paper published today, Nov. 12, in the journal Science Advances</a>.&nbsp;</p> November 12, 2025 - 4:04pm Katherine E Kerlin /climate/news/how-climate-change-brings-wildlife-yard An Extreme Tree Hunt in the Sierra Nevada /climate/news/extreme-tree-hunt-sierra-nevada Across 24 peaks and 240 miles through the Sierra Nevada, a UC Davis team searches for high-altitude Jeffrey pines to learn how climate change is reshaping forests. November 10, 2025 - 9:00am Katherine E Kerlin /climate/news/extreme-tree-hunt-sierra-nevada California Schools Are Losing Tree Canopy /climate/news/california-schools-are-losing-tree-canopy About 85% of elementary schools studied in California experienced some loss of trees between 2018 and 2022, found a UC Davis study. October 27, 2025 - 8:55pm Katherine E Kerlin /climate/news/california-schools-are-losing-tree-canopy These Songbirds Learn More From Siblings Than From Parents /climate/news/these-songbirds-learn-more-siblings-parents The powerful role of siblings is highlighted in this UC Davis study of a songbird species with limited parental care. October 09, 2025 - 11:00am Katherine E Kerlin /climate/news/these-songbirds-learn-more-siblings-parents Lake Tahoe Algae Experiment Suggests Seasonal Shifts Ahead /climate/news/lake-tahoe-algae-experiment-suggests-seasonal-shifts-ahead <p>As the climate warms and nutrient inputs shift, algal communities in cool, clear mountain lakes like Lake Tahoe will likely experience seasonal changes, according to <a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025WR039891?af=R">a study</a> from the University of California, Davis.&nbsp;</p><p>Periphyton, that fuzzy layer of attached algae covering the rocks as you step into the water, is a healthy and critical part of a lake’s food web. Periphyton blooms, however, signal changes that can degrade both water quality and a shoreline’s natural beauty.</p> October 06, 2025 - 9:06am Katherine E Kerlin /climate/news/lake-tahoe-algae-experiment-suggests-seasonal-shifts-ahead