New research in Geophysical Research Letters and partially funded by CPO's AC4 program found that the Bakken Formation, an oil and gas field in North Dakota and Montana, is responsible for roughly 2 percent of the globe's ethane--about 250,000 tons per year. 

A team of scientists partially funded by CPO's Atmospheric Chemistry, Carbon Cycle, & Climate (AC4) program published a Chemical Reviews article on the chemistry of atmospheric "brown carbon,"-- the atmospheric aerosol contributing to the brown color of smoggy air.

A multi-institution collaboration of scientists, including those from NOAA/ESRL/CSD and those partly funded by CPO/AC4 program has resulted in an interesting study comparing the origins of similar levels of formic acid (a potential precursor to aerosols) in very different environments.

New research supported by the Climate Program Office's Atmospheric Chemistry, Carbon Cycle, & Climate (AC4) program was published online in the Proceedings of the National Academy of Science on Dec. 8, 2014.