Measuring methane loss in Texas
July 16, 2015

Measuring methane loss in Texas' Barnett Shale

About 170,000 pounds (76,000 kg) of the greenhouse gas methane leak per hour from the Barnett Shale region of Texas, including the urban areas of Dallas and Fort Worth, according to a new study led by NOAA/ESRL and Cooperative Institute for Research in Environmental Sciences (CIRES) researchers.
Bottled air from all over the world tells story of ozone-depleting gases and their connection to climate change
May 18, 2015

Bottled air from all over the world tells story of ozone-depleting gases and their connection to climate change

If you’re like me, when you hear the word “flask,” you’re likely to picture a grizzled, trail-weary cowboy gulping down a mouthful of whiskey from a tarnished, dented tin. But say “flask” to atmospheric chemist Steve Montzka, and he sees something more like a fire extinguisher or a stainless steel, two-liter soda bottle.
Recent adjustments to the Montreal Protocol help protect ozone layer, but newer chemicals contribute to warming
May 14, 2015

Recent adjustments to the Montreal Protocol help protect ozone layer, but newer chemicals contribute to warming

An international agreement in 2007 to deal with the last remaining ozone-depleting chemicals used in large quantities is working, according to a new analysis published today. Atmospheric emissions of those chemicals, called hydrochlorofluorocarbons (HCFCs) and used in refrigeration and air conditioning, are no longer increasing, after having increased consistently over the past few decades, according to NOAA measurements published in the Journal of Physical Chemistry
Greenhouse gas benchmark reached
May 6, 2015

Greenhouse gas benchmark reached

For the first time since we began tracking carbon dioxide in the global atmosphere, the monthly global average concentration of this greenhouse gas surpassed 400 parts per million in March 2015, according to NOAA’s latest results.
American Chemical Society honors measurement set at NOAA observatory
April 23, 2015

American Chemical Society honors measurement set at NOAA observatory

The American Chemical Society designated the Keeling Curve – a long-term record of rising carbon dioxide in the planet’s atmosphere -- as a National Historic Chemical Landmark in a ceremony April 30 at NOAA’s Mauna Loa Observatory in Hawaii.
Scientists probe methane mystery in Four Corners
April 7, 2015

Scientists probe methane mystery in Four Corners

A team of scientific investigators is now in the Four Corners region of the U.S. Southwest, an area where the states of Arizona, New Mexico, Colorado and Utah meet at one point, aiming to uncover reasons for a mysterious methane hotspot detected from space by a European satellite. The joint project is working to solve the mystery from the air, on the ground, and with mobile laboratories.
MLO Science Fair Awards
February 24, 2015

MLO Science Fair Awards

Every year the Mauna Loa Obervatory contributes to the local Science Fair event. This year, Halia Buchal won the junior research award with the project titled: Purple or Green? Does Leaf Color Affect How Plants Respond to Different Colors of Light? The Senior research recipent Keanu D. Pinner won the senior division award with the project titled: Activation of the Hepatocyte Antioxidant Response by Kava Secondary Metabolites.
Antarctic ozone hole similar to last year
October 30, 2014

Antarctic ozone hole similar to last year

The Antarctic ozone hole, which forms annually in the August to October period, reached its peak size on September 11, stretching to 9.3 million square miles (24.1 million square kilometers), roughly the same size as last year’s peak of 9.3 million square miles (24 million square kilometers) on September 16, 2013. This is an area similar in size to North America.
ESRL Scientists honored with Colorado Governor
October 16, 2014

ESRL Scientists honored with Colorado Governor's Award

A team of NOAA and Cooperative Institute for Research in Environmental Sciences (CIRES) scientists from the Earth System Research Laboratory's Chemical Sciences Division (CSD), Global Monitoring Division (GMD), and Physical Sciences Division (PSD) has won a 2014 CO-LABS Governor's Award for High-Impact Research.
Understanding the Ozone Hole - a video designed for high school level students
September 12, 2014

Understanding the Ozone Hole - a video designed for high school level students

The sun rises at the South Pole every Sept 21, after six months of darkness, and the spark of light from the rising sun also starts a season of ozone depletion down south. With the approach of that date in mind, a CIRES/NOAA scientist and videographer has developed a short, educational video that focuses on the ozone research being conducted by NOAA and CIRES scientists.
NOAA Scientists Contribute to 2014 Ozone Depletion Assessment
September 9, 2014

NOAA Scientists Contribute to 2014 Ozone Depletion Assessment

We talked with Dr. John Daniel, Research Physicist with NOAA Research’s Earth System Research Laboratory (ESRL) Chemical Sciences Division, and Steve Montzka, Atmospheric Scientist with ESRL’s Global Monitoring Division, about the World Meteorological Organization and the United Nations Environment Programme Scientific Assessment of Ozone Depletion: 2014 and what inspired them to pursue a career in science.
CarbonTracker-CH4: An assimilation system for estimating emissions of atmospheric methane
September 1, 2014

CarbonTracker-CH4: An assimilation system for estimating emissions of atmospheric methane

The NOAA CarbonTracker-CH4 Data Assimilation Product has been developed as a companion product to NOAA's CarbonTracker (CO2), with the goal of producing quantitative estimates of emissions of methane to the atmosphere from natural and anthropogenic sources for North America and the rest of the world. CarbonTracker-CH4 emission estimates are consistent with observed patterns of CH4 in the atmosphere.
 2013 State of the Climate: Carbon dioxide tops 400 ppm
July 13, 2014

2013 State of the Climate: Carbon dioxide tops 400 ppm

On May 9, 2013, the daily average concentration of carbon dioxide (CO2) in the atmosphere surpassed 400 parts per million (ppm) for the first time at the Mauna Loa Observatory in Hawaii, where the modern record of observations began back in 1958. Other Northern Hemisphere sites also reported CO2 concentrations exceeding 400 ppm in 2013. By summer, the high concentrations at these sites had dropped as vegetation began taking up carbon dioxide for photosynthesis.
Greenhouse gases top 400 ppm for three months in a row at Mauna Loa
July 8, 2014

Greenhouse gases top 400 ppm for three months in a row at Mauna Loa

For the first time since carbon dioxide in the atmosphere has been measured, the levels of this greenhouse gas at Mauna Loa, Hawaii, have been above 400 parts per million every single day for three straight months.
How NOAA keeps track of carbon dioxide and other greenhouse gases
June 2, 2014

How NOAA keeps track of carbon dioxide and other greenhouse gases

The extent to which our home planet changes in response to increases in man-made heat-trapping gases is one of the foremost questions for the scientific community, policy makers, and the general public alike. To help answer this question, NOAA’s Global Monitoring Division produces the Annual Greenhouse Gas Index—a yearly report on the combined influence of long-lived greenhouse gases on Earth’s surface temperature.