February 09, 2016
The planet is effectively three-quarters of the way to the limit set by world leaders of 2 degrees Celsius of warming.
Climate: Map showing 2015 was warmest year on record
January 07, 2016
COSMIC satellites have provided a reliable thermometer in the sky.
Map of surface temperature departures from average in 2014
January 05, 2016
The ORCAS field campaign will help scientists better understand just how much carbon dioxide the icy waters are able to lock away.
ORCAS infographic shows how air-sea exchange of gases will be studied over Southern Ocean
December 08, 2015
NCAR scientists present evidence in a new study that they can predict whether the Arctic sea ice that forms in the winter will grow, shrink, or hold its own over the next several years.
NCAR sea ice predictions: Images showing observed and predicted winter sea ice loss
December 01, 2015
The impacts are expected to be particularly pronounced for the poor and those living in tropical regions.
Climate and food security. Photo of farmer tilling soil
October 12, 2015
Software engineers and scientists collaborate to visualize research.
Visualizations of Earth, air, fire, and water
September 29, 2015
As damages from extreme weather events rise, systems designed to be resilient are more important than ever.
Engineering for Disaster. Photo: bicycle path channels floodwaters during 2013 storm, Boulder, CO
September 16, 2015
This visualization shows how September sea ice in the Arctic could disappear by the end of this century.
possible ice-free future for the Arctic: still image from sea ice visualization
September 03, 2015
The El Niño brewing in the tropical Pacific is on track to become one of the strongest such events in recorded history and may even warm its way past the historic 1997-98 El Niño.
Sea surface temperatures on Aug. 3 in 1997 and 2015
August 04, 2015
As dengue fever moves north with a warming climate, scientists are looking at multiple factors that can limit outbreaks.
Scientist checks tires for mosquito breeding sites
July 08, 2015
The research could move scientists closer toward projecting weather patterns in Europe months to years in advance.
1,000 years of the North Atlantic Oscillation: Map shows NAO conditions in negative phase
June 22, 2015
Scientists propose a new approach for determining the influence of climate change on aspects of extreme weather events.
Climate and extreme weather: cracked, dry soil in Colorado
May 18, 2015
The interaction of a warming climate with a growing, shifting population could subject more people to sweltering conditions.
Exposure to extreme heat could rise: Graph shows regional increases
April 20, 2015
A new study estimates how much carbon dioxide is likely to be absorbed by plants by the end of the century.
Predicting plant uptake of carbon: photo of trees and ferns in Costa Rica
March 31, 2015
NCAR is taking part in a major international project to study how climate change will affect tropical rainforests around the world.
Climate and tropical forests: photo of tropical rainforest
January 13, 2015
Researchers are using specialized modeling techniques have learned how turbulence keeps the countryside cooler than urban areas on summer days.
The urban heat island effect can be exacerbated by the smooth surfaces of buildings, such as these in Dallas.
January 07, 2015
Scientists find unequivocal evidence that thunderstorms move ozone from the stratosphere down toward Earth's surface, affecting air quality and climate.
Thunderstorms and ozone:  A rotating supercell thunderstorm moves across northeast Colorado.
December 30, 2014
A new study led by NASA and NCAR shows that tropical forests may be absorbing far more human-emitted carbon dioxide than many scientists thought.
tropical rain forests and CO2: Serra do Mar Paranaense, Brazil
December 22, 2014
A piece of coral in a University of Arizona lab has revealed a link between Pacific trade winds and shifts in 20th century climate.
Sailboat in calm sea near Kiribati
December 04, 2014
New research demonstrates that an increase in greenhouse gas concentrations thousands of years ago was a key factor in causing substantially more rainfall in two major regions of Africa.
Greenhouse gases & past African rain: Photo of Ubari Oasis in southern Libya
December 02, 2014
Find answers to questions about these atmospheric patterns, which play a key role in year-to-year weather and climate variation around the world.
December 02, 2014
An introduction to El Niño, La Niña, what we've learned about them — and where research is headed next.
A wall of dust swept across Melbourne, Australia, during the El Nino of 1983
November 07, 2014
There's major disagreement among scientists on exactly what might be causing a tendency toward colder winters over the last few years in places like the central and eastern United States, Europe, and Russia.
Map of land/ocean temperatures, departures from average, Feb 2014
September 08, 2014
If today’s tools for multiyear climate forecasting had been available in the 1990s, they would have revealed that a slowdown in global warming was likely on the way, according to new research.
Decadal prediction: Map showing trends in sea surface temperature
August 13, 2014
For millions of people, El Niño or La Niña indicates whether they’re likely to face unusually warm, cold, wet, or dry conditions over the coming winter. A new modeling study pins down the process that apparently determines why La Niña events often last twice as long as typical El Niño events—a result with major implications for seasonal predictions.
Sea surface temperatures during 2007–08 La Niña

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