New-generation geostationary satellite reveals widespread midday depression in dryland photosynthesis during 2020 western U.S. heatwave.

The article explores the impact of the 2020 western U.S. heatwave on ecosystem photosynthesis, using observations from new-generation geostationary satellites. It mentions drylands show widespread midday depression in photosynthesis, shifting peak production towards mornings due to water and heat stress, revealing the potential of geostationary satellites in monitoring diurnal photosynthesis and the need to consider diurnal asymmetry in carbon-climate interactions.