With their tough skins, pointy armor and legendary stamina, cacti are made to defend themselves from whatever nature throws at them. 

But large solar energy facilities are one threat that cacti weren’t built to withstand, according to a study by the University of California, Davis. 

California may see a 54 percent increase in rainfall variability by the end of this century, according to new research from the lab of Assistant Professor Da Yang, a 2019 Packard Fellow and atmospheric scientist with the University of California, Davis.

Americans drove drastically less, saved millions of metric tons of greenhouse gases, and, in some states, lost millions in fuel-tax revenue since COVID-19 mitigation efforts took effect in early March. That is according to the latest special report from the Road Ecology Center at the University of California, Davis.

Sometimes, fixing one problem can create another.

Concrete production contributes 8 percent of global greenhouse gases, and demand continues to rise as populations and incomes grow. Yet some commonly discussed strategies to reduce the sector’s global GHG emissions could, under some scenarios, increase local air pollution and related health damages, according to a study from the University of California, Davis.