A new study looks into how air movement in the atmospheric boundary layer affects ozone removal by deciduous forests, which are a significant ozone sink.
Constituent sources and sinks
Measurements of Ozone-Depleting Chemicals in the Asian Monsoon
New high-altitude aircraft observations identify unexpected high levels of halogen-containing species entering the stratosphere above the summertime Asian monsoon.
Direct Air Capture Offers Some Promise in Reducing Emissions
The method offers potential in helping reduce carbon dioxide in the atmosphere but faces technological and economic hurdles.
Atmospheric Particles Aren’t the Same Cloud Seeds They Once Were
Still, more than half of the seeds required for cloud droplets to form in both the present-day and preindustrial atmospheres are made by trace gases that condense to form minute aerosol particles.
No Evidence for Unknown Source of Ozone Precursor
A study suggests that known combustion and photochemical sources of nitrous acid, a precursor to ground-level ozone, are enough to explain levels seen in the atmosphere.
Colorado Hydrocarbon Leakage Rates Much Higher Than Reported
Airborne measurements put methane emissions from Colorado's Denver-Julesburg Basin at 12 to 26 tons per hour.
Southwest’s Four Corners Home to Largest U.S. Methane Signal
Satellite data reveal fossil fuel harvesting operations in the Southwest's Four Corners are generating the country's largest methane signal viewable from space.
