Air Quality in the Los Angeles Basin Increasingly Dependent on Temperature 16 March 2021

Air Quality in the Los Angeles Basin Increasingly Dependent on Temperature

As air pollution from vehicle emissions decline, the response of pollutants from other sources to temperature is becoming an important factor in high-aerosol and high-ozone events in the Los Angeles megacity region. 

Announcing the GeoXO Atmospheric Composition Town Hall 9 March 2021

Announcing the GeoXO Atmospheric Composition Town Hall

The NOAA GeoXO Atmospheric Composition (AC) Town Hall will be held on April 29, 2021, from 12-4 pm EST to introduce the GeoXO mission to the AC community and share potential AC capabilities from this next-generation NOAA geostationary satellite system. 

Emissions of a Banned Ozone-depleting Gas are Back on the Decline 9 February 2021

Emissions of a Banned Ozone-depleting Gas are Back on the Decline

Discovery in 2018 posed first real test of the Montreal Protocol

New analyses of global air measurements show that five years after an unexpected spike in emissions of the banned ozone-depleting chemical chlorofluorocarbon CFC-11, they dropped sharply between 2018 and 2019.
Quantifying Ice Nucleating Particles in Western Wildfire Smoke Plumes 2 February 2021

Quantifying Ice Nucleating Particles in Western Wildfire Smoke Plumes

Using data sampled from wildfires across the US in the 2018 Western Wildfire Experiment for Cloud Chemistry, Aerosol Absorption, and Nitrogen (WE-CAN) campaign, this study is the first to quantify ice nucleating particles within wildfire smoke plumes in the free troposphere.

Comprehensive Summary of Reactive Oxidized Nitrogen Species in Western US Wildfire Smoke Plumes 12 January 2021

Comprehensive Summary of Reactive Oxidized Nitrogen Species in Western US Wildfire Smoke Plumes

A research team funded in part by CPO’s Atmospheric Chemistry, Carbon Cycle, & Climate (AC4) program observed and summarized the evolution of reactive oxidized nitrogen species in sampled from wildfire plumes as part of the Western Wildfire Experiment for Cloud Chemistry, Aerosol Absorption, and Nitrogen (WE-CAN) field campaign.

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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.