A massive release of greenhouse gases, likely triggered by volcanic activity, caused a period of extreme global warming known as the Paleocene-Eocene Thermal Maximum (PETM) about 56 million years ago.

Most global carbon-budgeting efforts assume a linear flow of water from the land to the sea, which ignores the complex interplay between streams, rivers, lakes, groundwater, estuaries, mangroves and more. 

Tiny particles in air pollution affect important lipid transport genes in the placenta, showing how exposure may cause conditions like preeclampsia and low birth weight

Methane is a potent greenhouse gas, so the study of its natural and anthropogenic biogeochemical sources and sinks is of enormous interest. 

Whether it’s mimicking venomous creatures, or shooting jets of water at aquarium light switches to turn them off, octopuses are nothing if not resourceful. 

Like the circulatory system that helps move blood, carry nutrients and filter waste in the human body, the planet’s river networks are in a very real sense similar conduits that help keep the planet alive.

New research from Global Monitoring Laboratory has identified temperate western Asia and tropical Asia as two additional source regions for the rising emissions of CFC-11 identified by NOAA scientists in 2018.

New UC Riverside research shows how, after it rains, microbes in desert soil convert one form of pollution into another — laughing gas.

About half of U.S. adults alive today were exposed to harmful levels of lead as children from the burning of leaded gasoline, according to a new study, which estimates that lead contamination has lowered Americans’ IQ scores by more than two points on average.

Despite research and policy efforts, recycling initiatives have skidded on more complex materials like tires and mattresses, filling dumps and natural land across the country.