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A NOAA-led study refutes the much-publicized idea that there has been a recent slowdown or “hiatus” in the rate of global warming . The study finds that global warming during the last 15 years has progressed as fast or faster than during the latter half of the 20th century.

The U.S. Climate Modeling Summit brought together representatives from the Nation’s major research and operational climate modeling programs

A new white paper highlights outcomes from the first annual U.S. Climate Modeling Summit. The Summit brought together leadership from the country’s six premier climate modeling centers to strategize around priorities of national interest—from experimental efforts that move science forward to forecasts and projections that inform on-the-ground decisions.

Thawing permafrost releases greenhouse gases into the atmosphere

A new synthesis published in Nature suggests that thawing Arctic permafrost will release greenhouse gases gradually, rather than in a sudden "bomb". The gradual rate of these natural emissions may give society more time to adapt to their effects, but they remain a challenge for climate mitigation .

Map showing the difference between 2014 surface temperatures and long-term average temperatures. 2014 temperatures were warmer over much of the globe. Map created by NASA GISS.

2014 ranks as Earth’s warmest since record keeping began in 1880, according to independent analyses by scientists at NASA and the National Oceanic and Atmospheric Administration (NOAA).

A new report investigates the causes of extreme weather and climate events that occurred around the world in 2013, finding evidence for both human and natural influences.

Requests are now being accepted for US CLIVAR sponsorship of workshops and new Working Groups for 2015. Submissions are encouraged from the U.S. climate science community with a due date of October 17.

NASA image of the ozone hole over Antarctica

New NASA research shows that Earth's atmosphere contains an unexpectedly large amount of carbon tetrachloride (CC14), an ozone -depleting chemical that was banned worldwide decades ago. According to the study, global emissions of CCl4 average 39 kilotons per year—approximately 30 percent of peak emissions prior to its banning.

Both NASA and NOAA have ranked May 2014 as the planet’s hottest May since records began in 1880. UPDATE: Since this article was published, June 2014, August 2014, September 2014, and October 2014 have also set records for monthly average temperatures.

The EPA climate indicators report finds that lake ice in the northern U.S. is freezing later and thawing earlier

A new EPA report presents a set of 30 indicators that track the causes and effects of climate change . Written for general audiences, the report aims to help readers understand long-term climate-related trends observed across the atmosphere, oceans, snow and ice, ecosystems, and public health.

A NOAA-led study finds that over the past 30 years, the location where tropical cyclones reach maximum intensity has been shifting toward the poles in both the northern and southern hemispheres at a rate of about 35 miles, or one-half degree of latitude, per decade.

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Latest News

Global Warming "Hiatus" Never Happened: New Study

Modeling Summit Bridges Weather & Climate, Research & Operations

From Thawing Permafrost, Slow but Steady Emissions Likely

2014 Confirmed as Hottest Year on Record

Extreme Weather Events of 2013: Human-Caused or Natural Variability?

US CLIVAR Issues Call for Workshops and Working Groups

Ozone-Depleting Chemical Persists in Atmosphere, Source Unknown

Last Month Was Earth's Hottest May on Record

Indicators Confirm: Climate Change is Here & Now

Tropical Cyclone “Maximum Intensity” Moving Poleward