Quantifying ecosystem respiration remains challenging in aquatic ecosystems. Most investigators assume that nighttime and daytime respiration are equal. Recent studies suggest measuring dissolved ...
We measure carbon and oxygen isotopes in air and ice to better understand Earth systems, including the carbon cycle, past climate, and methane. In August, Jianghanyang (Ben) Li joined Department of ...
Limnology and Oceanography, Vol. 59, No. 6 (2014), pp. 2150-2165 (16 pages) We used water δ₂H and δ18O from ca. 1000 lakes sampled in the 2007 U.S. Environmental Protection Agency’s National Lakes ...
Through an exploration of tree rings and oxygen isotopes, researchers are now able to better pinpoint the history of droughts in the arid and semiarid areas of the American West. Through an ...
Neutron-scattering measurements using different isotopes of oxygen have been made for the first time by an international team of researchers. The scientists have used the new technique to determine ...
BEIJING -- Chinese scientists have found that Earth's atmosphere experienced three major oxygen surges over the past 2 billion years as it shifted from an anoxic to an oxygen-rich state, offering ...
If you would like to learn more about the IAEA’s work, sign up for our weekly updates containing our most important news, multimedia and more. World Environment Day this year focuses on fighting the ...
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