Atmosphere
1 reportAtmosphere is studied with observations, reconstructions, and models that track a defined part of the climate system. Evidence comes from cloud processes, greenhouse gases, and primary observations, and competing models remain viable when observations are sparse or indirect.
Direct observations and comparative measurements are compared with model results. This record clarifies how atmospheric composition is measured and which processes control temperature, showing how sparse measurements or incomplete records limit certainty.
Direct observations and comparative measurements are compared with model results. This record clarifies how atmospheric composition is measured and which processes control temperature, showing how sparse measurements or incomplete records limit certainty.
NOAA-21 Satellite Captures Canada Wildfire Smoke Spanning Continents
A NOAA-21 satellite image from July 14, 2026, reveals vast smoke plumes from over 850 wildfires in Canada, with thick haze drifting into the northeastern United States and raising air quality concerns across borders.