NOAA Global Monitoring Laboratory

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Laboratory in Crested Butte, Colorado.</span> </div> </div> <div class="carousel-item" data-interval="10000"> <img class="" src="main_img/mlo_rainbow.jpg" alt="Hawaiian rainbow over Mauna Loa"> <div class="carousel-caption d-none d-md-block"> <span>A traditional Hawaiian rainbow over the Mauna Loa site</span> </div> </div> <div class="carousel-item" data-interval="10000"> <img class="" src="main_img/table_mountain.jpg" alt="Table Mountain test facility"> <div class="carousel-caption d-none d-md-block"> <span>Radiometers at the NOAA Table Mountain Test Facility</span> </div> </div> </div> <div class='tagline'> <h1 class='tagheader'>Global Monitoring Laboratory</h1> Taking the Pulse of the Planet </div> </div> </div> <div class="container-md"> <div class='row my-3'> <div class='col-md-7 col-lg-8'> <div class='h5'>The <span class='orange'><b> Global Monitoring Laboratory</b></span> (GML) of the National Oceanic and Atmospheric Administration conducts research on: </div> <p> <a href="/about/research.html#carboncycle" aria-label="Greenhouse Gases and Carbon Cycle Feedbacks"> <i class="fa fa-tree me-1" style='width: 1.5rem'></i> Greenhouse Gases and Carbon Cycle Feedbacks </a> <br> <a href="/about/research.html#radiation" aria-label="Changes in Surface Radiation, Clouds, and Aerosols"> <i class="fa fa-cloud-sun me-1" style='width: 1.5rem'></i> Changes in Surface Radiation, Clouds, and Aerosols </a> <br> <a href="/about/research.html#ozone" aria-label="Recovery of Stratospheric Ozone"> <i class="fa fa-globe-americas me-1" style='width: 1.5rem'></i> Recovery of Stratospheric Ozone </a> </p> <a href="/about/aboutgml.html" title="Read more about Global Monitoring Laboratory">Read More About GML >> </a> </div> <div class='col-md-5 col-lg-4'> <style> .overlay { position: absolute; top: 10px; left: 20px; } </style> <div class="row no-gutters"> <div class="col-4 text-center"> <a class="btn-gml-icon" href="/bin/news.php"> <span class="fa-stack fa-2x mt-2"> <i class="fas 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src='https://www.noaa.gov/sites/default/files/styles/landscape_width_1275/public/2025-04/20250325SastrugiSunset.jpeg?h=4233ef75&itok=KLluiylS' class='img-fluid' alt='news photo 0'> <div class='headline'> Photo feature: Last light at South Pole brings 6 months of darkness </div> <div class='newstitle'> News </div> </div> </a> </div> <div class='col-md-6 px-md-1'> <a href='/news/2025/gmls-20-year-water-vapor-record-at-lauder-new-zealand.html'> <div class='news-item'> <img src='/news/2025/lauder_water_vapor_launch.webp' class='img-fluid' alt='news photo 1'> <div class='headline'> GML鈥檚 20-year water vapor record at Lauder, New Zealand </div> <div class='newstitle'> News </div> </div> </a> </div> <div class='col-md-6 px-md-1'> <a href='https://www.noaa.gov/news-release/biden-harris-administration-noaa-invest-15-million-to-help-protect-western-us-communities#:~:text=The%20Department%20of%20Commerce%20and,support%20wildfire%20prediction%2C%20detection%20and'> <div class='news-item'> <img src='https://www.noaa.gov/sites/default/files/styles/landscape_width_1275/public/2025-01/PHOTO-GOES-18-satellite-Palisades-Eaton-Fire-burning-Southern-California-010825-NOAA.png?h=ea8bde7c&itok=4jknth2Z' class='img-fluid' alt='news photo 2'> <div class='headline'> Biden-Harris Administration, NOAA invest $15 million to help protect Western U.S. communities from wildfire </div> <div class='newstitle'> News </div> </div> </a> </div> <div class='col-md-6 px-md-1'> <a href='/news/2025/gml-highlights-at-the-2025-ams-annual-meeting.html'> <div class='news-item'> <img src='/news/2025/ams2025.png' class='img-fluid' alt='news photo 3'> <div class='headline'> GML highlights at the 2025 AMS annual meeting </div> <div class='newstitle'> News </div> </div> </a> </div></div> <a href="/bin/news.php" title="Read all news items about Global Monitoring Laboratory">Read More >></a></div> <div class='h4 orange mt-4'>Research</div> </div>  <div class="readingbox"> <div class="container-md">    <div class="card-group"> <div class="card"> <a href="/ccgg/"> <img src="/images/power-plant.webp" class="card-img-top" alt="greenhouse gases"> </a> <div class="card-body p-2"> <div class="h5 card-title"><a href="/ccgg/">Carbon Cycle Greenhouse Gases</a></div> <p class="card-text"> Measurements and modeling of the distributions of greenhouse gases, providing constraints to our understanding of the global carbon cycle. </p> </div> </div> <div class="card"> <a href="/hats/"> <img src="/images/hats.webp" class="card-img-top" alt="hats group"> </a> <div class="card-body p-2"> <div class="h5 card-title"><a href="/hats/">Greenhouse gases and Ozone-depleting Substances</a></div> <p class="card-text"> Quantifying the distributions and magnitudes of the sources and sinks for important ozone-depleting and greenhouse gases. </p> </div> </div> <div class="card"> <a href="/grad/">  <img src="/images/grad.webp" class="card-img-top" alt="grad group"> </a> <div class="card-body p-2"> <div class="h5 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class="container-md"> <div class="h4 orange mt-4">Atmospheric Baseline Observatories</div> <div class="row"> <div class="col-xs-6 col-sm-3 text-center"> <a href='/obop/brw/'><img src='/images/th_brw.jpg' class="img-fluid text-center rounded" alt='[Barrow]'><div class='h5 mt-1'>Barrow, Alaska</div></a> </div> <div class="col-xs-6 col-sm-3 text-center"> <a href='/obop/mlo/'><img src='/images/th_mlo.jpg' class="img-fluid text-center rounded" alt='[Mauna Loa]'><div class='h5 mt-1'>Mauna Loa, Hawaii</div></a> </div> <div class="col-xs-6 col-sm-3 text-center"> <a href='/obop/smo/'><img src='/images/th_smo.jpg' class="img-fluid text-center rounded" alt='[American Samoa]'><div class='h5 mt-1'>American Samoa</div></a> </div> <div class="col-xs-6 col-sm-3 text-center"> <a href='/obop/spo/'><img src='/images/th_spo.jpg' class="img-fluid text-center rounded" alt='[South Pole]'><div class='h5 mt-1'>South Pole, Antarctica</div></a> </div> </div>    </div> <div class="readingbox"> <div 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