A recent study supported by AC4 uses modeling methods to improve long-term observational records, confirming an understood trend of decreasing ozone in the lower stratosphere and challenging previous work showing a positive trend in the upper stratosphere.
Recent successful NOAA AGES workshop, sponsored by AC4 and ERB, focused on coordinating field measurements of urban and marine atmospheric composition across numerous field campaigns for summer 2023.
The research, co-authored by GML scientists and funded in part by CPO’s AC4, narrows the gap between known sources and sinks of methyl bromide.
Air quality
Urban atmosphere
AEROMMA
FIREX
GeoXo
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.