FM15 Press Conference Accidental geoengineering

American Geophysical Union (AGU)

Published on Dec 15, 2015

Various parts of the world have “dimmed” and “brightened” at times, as measured by surface solar radiation records, and some of that is clearly related to pollution patterns. But new data suggest an additional mechanism is at work. That something is whitening global cloud-free skies and changing the way that solar radiation reaches Earth’s surface. A provocative new analysis, presented in this briefing, points to a likely cause—an unintentional geoengineering experiment.

Charles Long, Senior Research Scientist, Cooperative Institute for Research in Environmental Sciences at the NOAA Earth System Research Laboratory, Boulder, Colorado, U.S.A.;
Martin Wild, Professor, ETH (Institute for Atmospheric and Climate Science), Zurich, Switzerland

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