ESRL
October 24, 2013

ESRL's Pieter Tans and greenhouse gas reference network team given the 2013 Colorado Governor's Awards for High-Impact Research

Dr. Pieter Tans and his team of researchers at ESRL's Global Monitoring Division were honored for work in Atmospheric Sciences for the Global Greenhouse Gas Reference Network. Tans and team developed and sustained the careful and continuous collection of atmospheric observations to create a long-term record of atmospheric trace gases that is helping scientists around the globe understand the Earth system and how humans are changing the dynamics of the climate on the Earth.
Earth is breathing deeper: Multi-agency study reveals widening seasonal swings in CO2 in the Northern Hemisphere
August 12, 2013

Earth is breathing deeper: Multi-agency study reveals widening seasonal swings in CO2 in the Northern Hemisphere

Levels of carbon dioxide in the atmosphere rise and fall annually as plants take up the gas in spring and summer and release it in fall and winter through photosynthesis and respiration. Now the range of that cycle is growing as more CO2 is emitted from the burning of fossil fuels and other human activities, according to a study published in Science by Scripps Institution of Oceanography, UC San Diego, with CIRES and NOAA co-authors.
Greenhouse gases continue climbing; 2012 a record year
August 1, 2013

Greenhouse gases continue climbing; 2012 a record year

NOAA's updated Annual Greenhouse Gas Index (AGGI), which measures the direct climate influence of many heat-trapping gases like carbon dioxide and methane, shows 2012 continued the steady upward trend that began with the Industrial Revolution of the 1880s. Last year, CO2 at the peak of its cycle reached 400 ppm for one month at all eight Arctic sites for the first time.
Carbon Dioxide at NOAA
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.
Sky-high methane mystery closer to being solved, researchers say
August 22, 2012

Sky-high methane mystery closer to being solved, researchers say

Levels of atmospheric methane have puzzled researchers in recent decades, first rising steadily due to human activities, then stabilizing for about decade starting in the mid-1990s before rising again in the last four years. Now, a new paper by academic researchers and a NOAA scientist identifies one reason for the period of slow-to-no growth: Decreased leakage of natural gas from oil fields.
Earth
August 2, 2012

Earth's oceans and ecosystems still absorbing about half the greenhouse gases emitted by people

Earth's oceans, forests and other ecosystems continue to soak up about half the carbon dioxide emitted into the atmosphere by human activities, even as those emissions have increased, according to a study by University of Colorado and NOAA scientists.
NOAA: Carbon dioxide levels reach milestone at Arctic sites
May 31, 2012

NOAA: Carbon dioxide levels reach milestone at Arctic sites

The concentration of carbon dioxide in the atmosphere of Barrow, Alaska, has reached a new milestone this spring, according to NOAA measurements.