Marine Studies + Climate

Warmer winters and snow drought may threaten western U.S. water by speeding flows, study finds

CORVALLIS, Ore. – As future shifts in climate lead to more rain and less snow in the western United States, new research finds that water will move faster through a landscape, likely leading to negative impacts on summer water levels and water quality.

The study is especially relevant at this moment because the western United States experienced similar snow drought conditions this past winter, with generally typical precipitation amounts, but less snow because of warmer temperatures.

New ice core studies expand histories of greenhouse gases and ocean temperature to 3 million years

CORVALLIS, Ore. — New analyses of ancient ice from Antarctica and the air contained inside it are extending the history of Earth’s climate records and expanding researchers’ understanding of how the planet has changed over the last 3 million years.

The findings, published this week in two papers in the journal Nature, show the long-term cooling of Earth’s climate during this period has been accompanied by only a modest decline in heat-trapping greenhouse gases in the atmosphere.

As ochre sea star ‘baby boomers’ grow up, species showing signs of recovery

CORVALLIS, Ore. – The “baby boom” of ochre sea stars that followed a population crash a decade ago is enabling the species to recover on the Oregon Coast, according to new research by scientists at Oregon State University and Cal Poly San Luis Obispo.

The study, published in Ecosphere, does not determine whether the boom was triggered by the wasting disease epidemic that pushed ochre sea stars to the brink of extinction in Oregon, or simply a fortunate coincidence.

Six-million-year-old ice discovered in Antarctica offers unprecedented window into a warmer Earth

CORVALLIS, Ore. — A team of U.S. scientists has discovered the oldest directly dated ice and air on the planet in the Allan Hills region of East Antarctica.

The 6-million-year-old ice and the tiny air bubbles trapped inside it provide an unprecedented window into Earth’s past climate, according to a new study published today in the Proceedings of the National Academy of Sciences.

New study finds large fluctuations in sea level occurred throughout the last ice age, a significant shift in understanding of past climate

CORVALLIS, Ore. — Large changes in global sea level, fueled by fluctuations in ice sheet growth and decay, occurred throughout the last ice age, rather than just toward the end of that period, a study publishing this week in the journal Science has found.