01.04.2018 - For the first time, scientists have shown through direct satellite observations of the ozone hole that levels of ozone-destroying chlorine are declining, resulting in less ozone depletion.
01.02.2018 - A new NASA-led study has solved a puzzle involving the recent rise in atmospheric methane, a potent greenhouse gas, with a new calculation of emissions from global fires. The new study resolves what looked like irreconcilable differences in explanations for the increase.
11.06.2017 - New NASA-funded research has devised a way to use satellite measurements of the precursor gases that contribute to ozone formation to differentiate among three different sets of conditions that lead to its production.
11.02.2017 - Measurements from satellites this year showed the hole in Earth's ozone layer that forms over Antarctica each September was the smallest observed since 1988, scientists from NASA and NOAA announced.
06.01.2016 - Using a new satellite-based method, scientists at NASA, Environment and Climate Change Canada, and two universities have located 39 unreported and major human-made sources of toxic sulfur dioxide emissions.
04.26.2016 - Flaring of waste natural gas from industrial oil fields in the Northern Hemisphere is a potential source of significant amounts of nitrogen dioxide and black carbon to the Arctic, according to a new NASA study, which features OMI Nitrogen dioxide data.
04.05.2015 - Dr. Paul Newman is the chief scientist for atmospheric sciences at NASA Goddard. In this talk he discusses how chlorofluorocarbons were destroying the ozone layer, what policy-makers did about it, and what challenges the ozone layer faces today.
09.10.2014 - Worldwide action to phase out ozone-depleting substances has resulted in remarkable success, according to a new assessment by 300 international scientists. The stratospheric ozone layer, a fragile shield of gas that protects Earth from harmful ultraviolet light, is on track to recovery over the next few decades.
07.16.2014 - While some forests emit volatile organic compounds that are involved in ozone pollution, history shows attempts to control smog have a better chance of succeeding by focusing on vehicle emissions.
06.08.2014 - Though Earth's ozone layer has been depleted over the past four decades by chlorofluorocarbons (CFCs) and similar chemical compounds, the changes are expressed differently at the North and South Pole
06.26.2014 - After ten years in orbit, the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite has been in orbit sufficiently long to show that people in major U.S. cities are breathing less nitrogen dioxide - a yellow-brown gas that can cause respiratory problems.
04.25.2014 - New NASA research on natural ozone cycles suggests ozone levels in the lowest part of Earth's atmosphere probably won't be affected much by projected future strengthening of the circulating winds that transport ozone between Earth's two lowest atmospheric layers.
12.19.2013 - Power plant emissions of sulfur dioxide -- an atmospheric pollutant with both health and climate impacts -- have increased across India in recent years, according to a new analysis of data from a NASA satellite.
05.07.2012 - Aura's Education and Public Outreach lead, Ginger Butcher, exhibited the new "Engineer a Satellite" activity in Washington, DC for the 2012 Earth Day event on the National Mall and the US Science and Engineering Festival.
12.01.2011 - A team of scientists have used the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite to confirm major reductions in the levels of a key air pollutant generated by coal power plants in the eastern United States. The pollutant, sulfur dioxide, contributes to the formation of acid rain and can cause serious health problems.
10.02.2011 - A NASA-led study has documented an unprecedented depletion of Earth's protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low temperatures in the stratosphere.
07.15.2011 - Fires raging in central Africa are generating a high amount of pollution that is showing up in data from NASA's Aura Satellite, with the ominous shape of a dark red butterfly in the skies over southern part of the Democratic Republic of the Congo and northern Angola.
01.28.2011 - Scientists have a good reason to track noctilucent or polar mesospheric clouds: they are a pretty good gauge of even the tiniest changes in the atmosphere. These "night-shining clouds" as they are sometimes called, are thin, wavy ice clouds that form at very high altitudes and reflect sunlight long after the Sun has dropped below the horizon.
05.05.2010 - Last month when ash from a volcanic eruption in Iceland shut down air traffic over much of Europe, an international network of centers dedicated to this aviation hazard sprang into action.
09.01.2009 - Sea ice at the other end of the world has been making headlines in recent years for retreating at a breakneck pace. Satellite measurements show that, on average, Arctic sea ice has decreased by four percent per decade.
05.27.2009 - The U.S. soybean crop is suffering nearly $2 billion in damage a year due to rising surface ozone concentrations harming plants and reducing the crop's yield potential, a NASA-led study has concluded.
12.16.2008 - Chinese government regulators had clearer skies and easier breathing in mind in the summer of 2008 when they temporarily shuttered some factories and banished many cars in a pre-Olympic sprint to clean up Beijing's air.
10.31.2008 - The Antarctic ozone hole reached its annual maximum on Sept. 12, 2008, stretching over 27 million square kilometers, or 10.5 million square miles. The area of the ozone hole is calculated as an average of the daily areas for Sept. 21-30 from observations from the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite.
04.26.2008 - In late April 2008, Kilauea Volcano Volcano on Hawaii's big island continued its pattern of increased activity, including elevated seismic tremors and emissions from the volcano's Halema'uma'u vent.
12.13.2007 - Weather broadcasts have long been a staple for people planning their day. Now with the help of NASA satellites, researchers are working to broaden daily forecasts to include predictions of air quality, a feat that is becoming reality in some parts of the world.
10.29.2007 - The Aura spacecraft currently flies about 15.22 minutes behind Aqua in the A-Train. The Aura Project is proposing to move Aura spacecraft closer to Aqua. Aura would follow Aqua by about 8 minutes along the same track after the move.
09.13.2007 - NASA scientists will join researchers from around the world to celebrate the 20th anniversary of the Montreal Protocol, an international treaty designed to reduce the hole in Earth's protective ozone layer.
01.31.2007 - For the first time, NASA scientists have used a shrewd spaceborne detective to track the origin and movement of water vapor throughout Earth's atmosphere. This perspective is vital to improve the understanding of Earth's water cycle and its role in weather and climate.
01.30.2007 - Pinpointing pollutant sources is an important part of the ongoing battle to improve air quality and to understand its impact on climate. Scientists using NASA data recently tracked the path and distribution of aerosols -- tiny particles suspended in the air -- to link their region of origin and source type with their tendencies to warm or cool the atmosphere.
12.14.2006 - Two new NASA-funded studies of ozone in the tropics using NASA satellite data not previously available are giving scientists a fuller understanding of the processes driving ozone chemistry and its impacts on pollution and climate change.
10.19.2006 - NASA and National Oceanic and Atmospheric Administration (NOAA) scientists report this year's ozone hole in the polar region of the Southern Hemisphere has broken records for area and depth.
A NASA and university study of ozone and carbon monoxide pollution in Earth's atmosphere is providing unique insights into the sources of these pollutants and how they are transported around the world.
08.03.2006 - Summer in the city can often mean sweltering "bad air days" that threaten the health of the elderly, children and those with respiratory problems. This summer the nation's capitol has been no stranger to such severe air-quality alerts.
06.29.2006 - The Antarctic ozone hole's recovery is running late. According to a new NASA study, the full return of the protective ozone over the South Pole will take nearly 20 years longer than scientists previously expected.
06.28.2006 - Since launching in July 2004, Aura has been retrieving information and producing valueable data of the Earth and its atmospheric properties. View the selected top ten discoveries that Aura's instruments have brought us so far.
05.09.2006 - Thunderstorms over Tibet provide a main pathway for water vapor and chemicals to travel from the lower atmosphere, where human activity directly affects atmospheric composition, into the stratosphere.
10.07.2004 - Forty K-12 educators from the United States and France participated in an 11-day NASA-sponsored workshop this past summer aimed at bringing real-life science experiences into the classroom.