Horned Larks are cute songbirds with white bellies and yellow chins—at least, now they are.

Tropical Storm Ophelia developed on Oct. 9 around 5 a.m. EDT as the seventeenth, tropical depression of the Atlantic Ocean hurricane season. It formed in the Central Atlantic Ocean about 875 miles (1,405 km) west-southwest of the Azores islands. NASA's Terra satellite provided forecasters with a visible image of the storm as it strengthened into a tropical storm. 

While the policy debate surrounding crude oil transportation costs has emphasized accidents and spills, a new study by Carnegie Mellon University and University of Pittsburgh researchers indicates the debate is overlooking a far more serious external cost—air pollution and greenhouse gas emissions. 

Tropical Depression 23W formed on Monday, Oct. 9 and by Tuesday, Oct. 10 it made landfall in northern Vietnam. NASA's Aqua satellite analyzed the depression in infrared light and determined the strongest storms were located in two countries.  

Methane is the second most powerful greenhouse gas and concentrations are rising in the atmosphere. Because of its potency and quick decay in the atmosphere, countries have recognised that reduction of methane emissions are a means toward mitigating global warming.

Red Sea surgeonfish use metabolically diverse giant bacteria to digest different types of algae, according to new research. Not only do these findings explain the basis of surgeonfish diversity, but they may also provide a valuable genetic resource for biofuel research.

Conservationists work to save the planet, and few are as knowledgeable when it comes to the environmental pressures of the Anthropocene.

NASA-NOAA's Suomi NPP satellite analyzed the temperatures in Post-tropical cyclone Nate's cloud tops as the storm moved over the Ohio Valley. Satellite imagery showed the storm was bringing rainfall from the northeastern U.S., to the Mid-Atlantic and south through the Appalachian Mountains.  

Though September was warmer and drier than average for the U.S, it will long be remembered for the devastating impacts from Hurricanes Irma and Maria, as well as the remnants of Harvey, to southern parts of the U.S. and the Caribbean.

New research shows that equatorial waves — pulses of warm ocean water that play a role in regulating Earth’s climate — are driven by the same dynamics as the exotic materials known as topological insulators.