Wednesday, November 22, 2017
 
Los Angeles air pollution declining, losing its sting

Tuesday, June 4, 2013

Los Angeles air pollution declining, losing its sting

The cleanup of California’s tailpipe emissions over the last few decades has not only reduced ozone pollution in the Los Angeles area, it has also altered the pollution chemistry in the atmosphere, making the eye-stinging “organic nitrate” component of air pollution plummet, according to a new study.

Mystery solved: "Extra” methane in LA's air traced to fossil-fuel sources

Tuesday, May 14, 2013

Mystery solved: "Extra” methane in LA's air traced to fossil-fuel sources

A new study, led by NOAA and its Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder, used a novel approach to trace methane in the Los Angeles basin back to its sources, and found that "extra" methane is likely coming from sources related to fossil fuels.

Carbon Dioxide at NOAA’s Mauna Loa Observatory reaches new milestone: Tops 400 ppm

Friday, May 10, 2013

Carbon Dioxide at NOAA’s Mauna Loa Observatory reaches new milestone: Tops 400 ppm

On May 9, the daily mean concentration of carbon dioxide in the atmosphere of Mauna Loa, Hawaii, surpassed 400 parts per million (ppm) for the first time since measurements began in 1958.

The origins of cirrus: Earth’s highest clouds have dusty core

Thursday, May 9, 2013

The origins of cirrus: Earth’s highest clouds have dusty core

Scientists have found that wispy cirrus clouds have cores of dust and metallic particles, answering questions about how these clouds form and giving insight into their climatic implications in the future.

The National Sea Grant Advisory Board welcomes four new members

Thursday, April 25, 2013

The National Sea Grant Advisory Board welcomes four new members

Four new members were appointed to the National Sea Grant Advisory Board at its March 2013 meeting in Washington, D.C.
New study: Pace of climate zone shifts quickens as climate warms

Monday, April 22, 2013

New study: Pace of climate zone shifts quickens as climate warms

As our planet is warming, not only have Earth’s climate zones begun to shift – the pace of change is expected to accelerate, according to a new study led by the NOAA Cooperative Institute for Research in Environmental Sciences at the University of Colorado.

Arctic nearly free of summer sea ice during first half of 21st century

Friday, April 12, 2013

Arctic nearly free of summer sea ice during first half of 21st century

For scientists studying summer sea ice in the Arctic, it’s not a question of “if” there will be nearly ice-free summers, but “when.” A new study says it could be before 2050.
NOAA-led report: 2012 Central Great Plains 'flash drought' a result of natural variations in weather

Thursday, April 11, 2013

NOAA-led report: 2012 Central Great Plains 'flash drought' a result of natural variations in weather

A new report by the NOAA Drought Task Force finds natural variations in weather patterns caused the 2012 Great Plains drought and rules out global ocean conditions, as well as human-induced climate change, as major culprits.
New study gives first independent confirmation of global land warming

Tuesday, April 9, 2013

New study gives first independent confirmation of global land warming

A new observational study that did not use temperature recordings from land stations has confirmed global land warming.

Thin, low Arctic clouds played an important role in the massive 2012 Greenland ice melt

Wednesday, April 3, 2013

Thin, low Arctic clouds played an important role in the massive 2012 Greenland ice melt

New study shows clouds will be important in region’s future

Clouds over the central Greenland Ice Sheet last July were “just right” for driving surface temperatures there above the melting point.

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