September 07, 2010
The wildfire that erupted in the foothills west of Boulder in September 2010 sent a thick plume of smoke right over NCAR’s chemistry labs. Even as their offices smelled of smoke, scientists took measurements from the roof.
UCAR Magazine
August 09, 2010
In 1988, it was the spectre of Yellowstone National Park on fire. In 2003, it was the horror of thousands dying from heat in prosperous western Europe. The planet’s standout heat wave in 2010 plagued much of European Russia, including Moscow.
UCAR Magazine
May 24, 2010
The difference between El Niño and La Niña can be a huge one for U.S. weather and for global climate. A strong El Niño can nudge global temperatures upward for up to a year.
May 06, 2010
A study that includes NCAR scientists suggests that plant leaves emit far less methane when exposed to sunlight than previously thought. The research estimates that foliage is the source of less than 1% of Earth’s methane emissions.
A rainforest in Tasmania, Australia, with dense green foliage.
April 09, 2010
There’s only so much air to go around. Since we inhale trillions of molecules with every breath, a few of them may have been exhaled by people who lived hundreds or thousands of years ago.
Canadian smoke plume, 2008
March 23, 2010
The Asian monsoon is providing a pathway for pollutants to rise high in the atmosphere.
Pollution along lower Yangtze River
February 25, 2010
The greater Salt Lake City area is known for harboring some of the most polluted air in the country during the winter. A team of NCAR researchers is gearing up to collaborate on a study of the winter weather inversions that cause the city's poor air quality.
Salt Lake City skyline obscured by air pollution.
January 15, 2010
A growing body of research now confirms that the Montreal agreement averted at least one catastrophic form of climate change, even if others still loom. "The Montreal Protocol is a major success story," says William Randel.
British Antarctic Survey’s Halley Station
January 14, 2010
A team led by NCAR's Jim Smith has found that aminium salts make up as much as half of the mass of newly formed particles in places as diverse as Atlanta, Mexico City, northeast Colorado, and Finland.
Cattle on a feedlot.
December 09, 2009
NCAR researchers are increasingly adopting an innovative tool for statistical computing and graphics. Called R, this community software project is the statistics equivalent of the LINUX movement.
A graph showing temperature data.
October 15, 2009
Preliminary research at NCAR suggests that biological particles may contribute significantly to the mass of organic carbon stored in atmospheric aerosols. The study is an important step for scientists.
Christine Wiedinmyer taking measurements at Storm Peak Laboratory.
October 01, 2009
When it comes to global air pollution, what goes around comes around. Air pollution from factories, traffic, and power plants in Asia wafts over the Pacific Ocean to the United States, while pollutants produced in the United States wind up in Europe.
Map of globe showing carbon monoxide transport.
September 14, 2009
In 2006, a team of NCAR researchers convened in Mexico City for MIRAGE, a study of the chemical and physical transformation of air pollution in urban areas and its impact on air quality, ecosystems, and climate. Another MIRAGE field campaign kicks off this month, this time in Shanghai, China's largest city.
Factories on the shores of the lower Yangtze River in China.
July 28, 2009
A new study led by NCAR scientist David Edwards is the first to apply the concept of Observing System Simulation Experiments to chemical weather (predicting pollution events and variability in the atmosphere’s chemical composition).
Pollution
April 02, 2009
Geoffrey Tyndall, NCAR's Atmospheric Chemistry Division • As a physical chemist, Tyndall likes "quantifying things, putting numbers on them—how fast does this go, and why is this reaction faster than that one?"
Geoffrey Tyndall working in his lab.
February 17, 2009
NCAR scientist Fei Chen is collaborating with colleagues at China’s Institute of Urban Meteorology to explore how growth in Beijing is changing the city’s summer rainfall patterns, focusing specifically on the relationship between urban expansion, aerosols, and summer rainfall.
Sunset over Beijing, China
January 29, 2009
A team of scientists has successfully flown from the Arctic to the Antarctic this month, the first step in a three-year project to make the most extensive airborne measurements of carbon dioxide and other greenhouse gases to date.
HIAPER aircraft during the HIPPO mission
December 18, 2008
NCAR postdoctoral researcher Yongku Kim is using epidemiologic data to study the effects of ozone regulation on human health. He’s leading an assessment of how various regulatory standards for ozone may affect non-accidental mortality, including respiratory-related deaths during ozone season.
Freeway filled with cars
October 09, 2008
Wildfires can boost ozone pollution to levels that violate U.S. health standards, a new study concludes.
Arial photograph of large smoke plume in the distance
September 24, 2008
Research from MIRAGE (Megacities Impacts on Regional and Global Environments), a field campaign held in Mexico City in 2006, is coming to fruition as scientists begin to publish their findings. A new paper details the ozone “weekend effect” in Mexico City and its implications for local air pollution.
Cars driving through smog-filled air in a city.
September 24, 2008
Mountain pine beetles appear to be doing more than killing large swaths of forests in the Rocky Mountains. Scientists suspect they are also altering local weather patterns and air quality.
Photograph of Alex Guenther looking at an instrument attached to a pine tree
September 18, 2008
Plants in a forest respond to stress by producing significant amounts of a chemical form of aspirin, scientists have discovered.
Photograph of a tower against a blue sky and tree branches in the foreground
July 08, 2008
In an attempt to create a favorable environment for this summer's Olympic Games in Beijing, Chinese officials hope to influence local weather conditions and air quality.
Photograph of a sunset over a city and highways
June 12, 2008
Scientists are deploying an advanced research aircraft to study a region of the atmosphere that influences climate change by affecting Earth's thermal balance. Findings will be used to improve computer models of global climate.
Photograph of three men in a hangar wroking on equipment  attached to a plane
February 01, 2007
Laura Pan, NCAR's Atmospheric Chemistry Division • Pan describes herself as an "accidental" scientist. She never intentionally set out to pursue a science career, but her pursuit of knowledge and understanding, however, is anything but accidental.
Laura "Liwin" Pan

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