Marine Sulfur Aerosols Increase in the Alaskan Arctic 10 November 2020

Marine Sulfur Aerosols Increase in the Alaskan Arctic

Researchers supported in part by CPO’s Atmospheric Chemistry, Carbon Cycle, & Climate (AC4) program have collected new aerosol data at two coastal sites on the North Slope of Alaska. Their work, combined with past data from NOAA, reveals that sulfur aerosol concentrations continue to increase at more than 2% per year.

New Technical Report: A Value Assessment of an Atmospheric Composition Capability on the NOAA Next-Generation Geostationary and Extended Orbits (GEO-XO) Missions 4 November 2020

New Technical Report: A Value Assessment of an Atmospheric Composition Capability on the NOAA Next-Generation Geostationary and Extended Orbits (GEO-XO) Missions

Published as a NOAA Technical Report, this white paper identifies the NOAA mission requirements, stakeholder mandates, and seven science and operational application areas that will benefit from geostationary satellite instruments providing atmospheric composition products. 

California-Native Trees Uptake of Acyl Peroxynitrate Keeps Nitrogen Oxides From Re-entering Atmosphere 3 November 2020

California-Native Trees Uptake of Acyl Peroxynitrate Keeps Nitrogen Oxides From Re-entering Atmosphere

Atmospheric Chemistry, Carbon Cycle, & Climate (AC4)-funded researchers determine acyl peroxynitrate, one possible result from nitrogen oxide (NOx) reacting in the atmosphere, can act as a NOx sink rather than a reservoir in rural and remote forested regions.

Machine Learning Reveals Top Environmental Predictors for Wildfire in South Central United States 26 October 2020

Machine Learning Reveals Top Environmental Predictors for Wildfire in South Central United States

Researchers funded in part by AC4 have developed a fire prediction model which incorporates multiple machine learning algorithms to better predict areas burned by wildfire in the US south central region.

Lawns & Landscaping Provide Surprising Contribution to Los Angeles Basin’s Carbon Emissions 13 October 2020

Lawns & Landscaping Provide Surprising Contribution to Los Angeles Basin’s Carbon Emissions

The Los Angeles Basin is often thought of as a dry, smoggy, overdeveloped landscape. But a new study funded in part by CPO's Atmospheric Chemistry, Carbon Cycle, and Climate Program shows that the manicured lawns, emerald golf courses and trees of America’s second-largest city have a surprisingly large influence on the city’s carbon emissions.

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Americans’ health, security and economic wellbeing are tied to climate and weather. Every day, we see communities grappling with environmental challenges due to unusual or extreme events related to climate and weather.