University of Arizona researchers have shown that the conversation around migration out of Central American countries should be more nuanced and based on local trends rather than regional expectations.

The discovery of a forgotten metabolic pathway adds a new dimension to the global carbon cycle.

The research findings were unique because they documented for the first time the reduced flashiness of arid urban streams in the West and showed what a big role so-called “dry weather flows” are playing in overall streamflow patterns.

CU Boulder one of 35 institutions to contribute to the 2019 Lancet Countdown report.

Buildings use 40 percent of America’s primary energy and 75 percent of its electricity, which can jump to 80 percent when a majority of the population is at home using heating or cooling systems and the seasons reach their extremes.

When a marine heat wave hit California’s coast in 2014, it brought ocean temperatures that were high for Northern California but fairly normal for a Southern California summer.

The ratio of carbon isotopes in three common species of tuna has changed substantially since 2000, suggesting major shifts are taking place in phytoplankton populations that form the base of the ocean’s food web, a new international study finds.

Tropical Storm Fengshen continued to strengthen in the Northwestern Pacific Ocean as NASA’s Terra satellite passed overhead.

The Arctic’s oldest and thickest ice is disappearing at a rate twice as fast as ice in the rest of the region, according to a new study published in the journal Geophysical Research Letters.

Research indicates that a heavy sediment load might cause additional meandering in rivers.