Scientists have improved our ability to interpret one of the most common measures of the temperature of Earth's oceans in the distant past.

PNNL is studying the movement of lamprey fish, which are culturally and historically important to the Pacific Northwest, on rivers and through hydroelectric dams.

Emissions of isoprene, a compound from plant matter that wields great influence in the atmosphere, are up to three times higher in the Amazon rainforest than scientists have thought.

The May 18, 1980, eruption of Mount St. Helens clouded the Pacific Northwest prompted a trove of research for some PNNL scientists.

Clouds in the eastern North Atlantic region will come under scrutiny from a bevy of airplane-based instruments this summer as scientists analyze the physical and chemical properties of clouds and aerosols.

Man-made pollution in eastern China's cities worsens when less dust blows in from the Gobi Desert, according to a new study in Nature Communications.