Environment

Report: Changing manure management would significantly reduce dairy methane emissions


October 18, 2018

New research published in the Journal of Dairy Science finds that changing the way manure is stored and handled is key to meeting California’s 40 percent dairy manure methane reduction goal and combating climate change. 

With financial support from Environmental Defense Fund (EDF) and cooperation from the Dairy Cares coalition, leading scientists worked together to produce the most thorough, detailed measurements of “whole-dairy” methane emissions in California to date.

Change on the Range

October 17, 2018
First-generation ranchers help preserve California rangelands

A new breed of ranchers is bringing diverse demographics and unique needs to rangeland management in California. These first-generation “ranchers” are often young, female and less likely to, in fact, own a ranch. But like more traditional rangeland managers, this new generation holds a deep love for the lifestyle and landscapes that provide a wealth of public benefit to California and the world.

Lichens Are Losing to Wildfire, Years After Flames Are Gone

August 09, 2018

As increasingly hot and severe wildfires scorch the West, some lichen communities integral to conifer forests aren’t returning, even years after the flames have been extinguished, according to a study from scientists at the University of California, Davis.

Grasslands More Reliable Carbon Sink Than Trees

July 11, 2018
In Wildfire-Prone California, Grasslands a Less Vulnerable Carbon Offset Than Forests

Forests have long served as a critical carbon sink, consuming about a quarter of the carbon dioxide pollution produced by humans worldwide. But decades of fire suppression, warming temperatures and drought have increased wildfire risks — turning California’s forests from carbon sinks to carbon sources.

Closing the loop on sustainable aquaculture

May 29, 2018

Inside the world’s first caviar farm that uses fish waste to grow vegetables

On a farm just outside of Sacramento, hundreds of prehistoric-looking fish swim around in 50-foot diameter tanks. These are white sturgeon, the largest freshwater fish in North America. They’ve been around since dinosaurs, can grow more than 7 feet long and lay hundreds of thousands of eggs at a time. The roe of these sturgeon are harvested for a boutique food producer regally named Tsar Nicoulai Caviar.

Can seaweed cut methane emissions on dairies?

May 24, 2018

Expert sees dramatic reduction when cows consume seaweed supplement

Seaweed may be the super food dairy cattle need to reduce the amount of methane they burp into the atmosphere. Early results from novel research at the University of California, Davis, indicate that just a touch of the ocean algae in cattle feed could dramatically cut greenhouse gas emissions from California’s 1.8 million dairy cows.

Helping hands

April 16, 2018

Student volunteers serve the community in Monterey County

A group of dedicated CA&ES students spent their spring break helping others and learning about community challenges in Monterey County. Sponsored by the CA&ES Dean’s Office, the weeklong trip included serving meals to the homeless, planting trees as part of a native plant restoration project and pulling weeds on an organic farm.

New source of global nitrogen discovered

April 09, 2018

Rocks could hold key to carbon storage and improved global climate projections

For centuries, the prevailing science has indicated that all of the nitrogen on Earth available to plants comes from the atmosphere. But a study from the University of California, Davis, indicates that more than a quarter comes from Earth’s bedrock.

Walleye fish populations are in decline

March 29, 2018

Study a warning signal for popular game fish

Walleye, an iconic native fish species in Wisconsin, the upper Midwest and Canada, are in decline in northern Wisconsin lakes, according to a study published this week in the Canadian Journal of Fisheries and Aquatic Species.