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How many people actually have Covid-19?

https://www.mpg.de/14909105/0605-defo-137749-how-many-people-actually-have-covid-19

The demographic scaling model developed by researchers at the Max Planck Institute for Demographic Research in Rostock and University of Helsinki makes it possible to estimate the actual number of Covid-19-infections in different countries with just a minimum of data. According to this model, the number of cases in Germany is only 1.8 times higher than the number of confirmed cases. For Italy, however, the researchers estimate that the number of infected is 6 times higher than the number of confirmed cases reported by the health authorities.
Corona Social Sciences Shift in deaths from the very old to people in middle age Wind

Leopoldina advocates a sustainable approach to tackling the coronavirus pandemic

https://www.mpg.de/14679719/leopoldina-advocates-a-sustainable-approach-coronavirus-pandemic?c=151194

In the light of the coronavirus pandemic, the National Academy of Sciences Leopoldina calls for a shift towards sustainable forms of economy, more European and international cooperation, and a strengthening of services of general interest and common goods that will make our societies more resilient to future crises. Among the authors of the statement are Jürgen Renn, Max Planck Institute for the History of Science, and Robert Schlögl, Fritz Haber Institute of the Max Planck Society and Max Planck Institute for Chemical Energy Conversion, supported by Christoph Rosol as coordinator of the Anthropocene Research Group at the Max Planck Institute for the History of Science.
Corona Social Sciences Shift in deaths from the very old to people in middle age Wind

Amazon region more resilient than assumed

https://www.mpg.de/24234854/amazon-rainforest-tipping-point-precepitation

New evidence suggests that mean annual precipitation in the Amazon region is not going to change significantly even if it were completely deforested. This finding of the Max Planck Institue for Meteorology is contrary to concerns that beyond a tipping point, the Amazon would turn into a savannah.
Wind carries moisture into the region Average monthly precipitation in the Amazon

Sonne und Windkraft können das Stromnetz stabilisieren

https://www.mpg.de/6342735/Stromnetz_regenerative_Energie

Ein dezentrales Stromnetz mit vielen kleinen Windkraftanlagen, Solaranlagen und anderen Wandlern regenerativer Energie sowie zusätzlichen stromleitungen kann stabiler gegen einen Stromausfall sein als ein zentrales Stromnetz mit wenigen großen Kraftwerken, weil die Synchronisation darin selbstorganisiert erfolgt. Das ergeben Simulationen von Forschern um M. Timme am Max-Planck-Institut für Dynamik und Selbstorganisation. Demnach ist es für die Netz-Stabilität jedoch wichtig, dass neue Leitungen sorgfältig geplant werden, um das Braess-Paradoxon zu vermeiden.
September 2012 Energie Wind, Sonne oder Biogas sollen eine immer größere Rolle