News

Nitrogen fertilizer usage has helped feed nearly half the global population. But nitrogen emissions to the atmosphere have contributed to acid rain, air pollution, stratospheric ozone depletion, and the radiative forcing underlying climate change.

A 12-year collaboration between NOAA and the Indian Ministry of Earth Sciences paves the way for advances in severe weather modeling and may lead to improved tropical cyclone forecasts.

One process driving the North Pacific's trajectory into uncharted waters is rising greenhouse gas concentrations in the atmosphere. Those rising concentrations are driving more heat into the ocean's surface layer.

Clouds produced by some wildfires can send black carbon high into the atmosphere, where it can linger for months. Black carbon particles with thicker coatings of other materials absorb more light, potentially doubling their warming effect.

Dry air plays a surprisingly important role in these heatwaves by suppressing upward movement of warm, moist air, a process that usually cools the surface.

A new study finds 2023’s record-breaking temperatures came from a mix of ongoing global warming and natural climate variability, including transition from cooler La Niña conditions to warmer El Niño conditions.

New research finds large-scale circulation shifts have helped increase atmospheric river activity, boosting summer moisture in the Arctic.

A new study suggests that in a high emissions scenario where water availability could decrease up to 60 percent, solar radiation modification could increase water availability up to 50 percent.

Cooler temperatures in the spring, autumn, and winter might significantly increase ammonium nitrate formation, potentially leading to higher levels of particulate matter.

Two experimental tools that will speed fire detection and warning got a week-long test run in June 2024. Hands-on simulations involved National Weather Service fire weather forecasters, state wildfire managers, researchers, and social scientists.