Research partially funded by CPO's MAPP program has been published in the June issue of the Bulletin of the American Meteorological Society. The study: "CMIP5 Climate Model Analysis: Climate ... ...

Chances that an El Niño will occur by summer are above 70%, hitting 80% by the fall. But subsurface temperature anomalies have tapered off some from earlier this spring, decreasing the odds the event will be as strong as the El Niño of 1997-98.

On August 25, 2011, Dr. Elwynn Taylor, Iowa State University's Extension Climatologist, tweeted to Iowa corn farmers: “Weather based statistics indicate a US corn yield of 149BPA, the prime factor this year is the Aridity Index.” Taylor uses NOAA climate information and seasonal outlooks to help thousands of the region's farmers manage risk. Nearly 5,000 followers look to his Twitter feed for guidance.

Since 2004, researchers in NOAA’s Global Monitoring Division have released the Annual Greenhouse Gas Index: a single value that compares the total warming effect of each year's concentrations of heat-trapping gases to 1990 levels.

El Niño typically favors stronger hurricane activity in the central and eastern Pacific basins, and suppresses it in the Atlantic basin. Where does that leave the 2014 hurricane outlook?

In response to recent decades' warming, forests in the eastern United States have been "inhaling" more carbon dioxide through photosynthesis than they've “exhaled” through respiration.

If the climate conditions that indicate ENSO are best measured as seasonal averages, will scientists wait for conditions to persist three months before declaring El Niño underway?

CarbonTracker is a tool for modelling sources and sinks of carbon dioxide. Users can download the code, carbon dioxide data, and the tool's carbon flux estimates to conduct their own analyses or to help improve the system.

In April 2011, Texas was in the midst of what may have been its worst fire season in history. As the season began, NOAA outlooks and observations helped fire managers think strategically about where their resources could be most effective.

After winning three awards in the 2014 Webby Awards, NOAA Climate. After winning three awards in the 2014 Webby Awards, NOAA Climate. gov was invited to give a five-word acceptance speech at a ceremo ...