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DTSTART;VALUE=DATE:20250130
DTEND;VALUE=DATE:20261001
DTSTAMP:20260930T131631Z
CREATED:20250130T040513Z
LAST-MODIFIED:20260930T131631Z
UID:145372-1738195200-1790812799@www.a3veen.nl
SUMMARY:Planetary Solvency–finding our balance with nature - publication
DESCRIPTION:‘Planetary Solvency – finding our balance with nature’ is the IFoA’s fourth report in collaboration with climate scientists\, the report develops a framework for global risk management to address these risks and show how this approach can support future prosperity. \nIt also shows how a lack of realistic risk messaging to guide policy decisions has led to slower action than is needed. The report proposes a novel Planetary Solvency risk dashboard\, to provide decision-useful risk information to support policymakers to drive human activity within the finite bounds of the planet that we live on. The global economy could face a 50% loss in GDP between 2070 and 2090\, unless immediate policy action on risks posed by the climate crisis is taken. Populations are already impacted by food system shocks\, water insecurity\, heat stress and infectious diseases. If unchecked\, mass mortality\, mass displacement\, severe economic contraction and conflict become more likely. \nLinks:\nPlanetary solvency \n4 Billion Dead
URL:https://www.a3veen.nl/event/planetary-solvency-finding-our-balance-with-nature-publication/
CATEGORIES:Bibliotheek,kennis,Klimaat
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20260219
DTEND;VALUE=DATE:20260220
DTSTAMP:20260517T141651Z
CREATED:20260219T143338Z
LAST-MODIFIED:20260517T141651Z
UID:140620-1771459200-1771545599@www.a3veen.nl
SUMMARY:Measurement of a lithium plume from the uncontrolled re-entry of a Falcon 9 rocket - publication
DESCRIPTION:A 10-fold enhancement of lithium atoms was detected at 96 km altitude by a resonance lidar at Kühlungsborn\, Germany\, approximately 20 hours after the uncontrolled re-entry of a Falcon 9 upper stage. \nThe upper-atmospheric extension of the ICOsahedral Nonhydrostatic (ICON – a unified modeling system for global numerical weather prediction and climate studies) general circulation model\, nudged to ECMWF\, was used to calculate winds. Backwards trajectories\, including wind variability as measured by radar\, traced air masses to the Falcon 9 re-entry path at 100 km altitude\, west of Ireland. The study ‘Measurement of a lithium plume from the uncontrolled re-entry of a Falcon 9 rocket‘ presents the first measurement of upper-atmospheric pollution resulting from space debris re-entry and the first observational evidence that the ablation of space debris can be detected by ground-based lidar. The analysis of geomagnetic conditions\, atmospheric dynamics\, and ionospheric measurements supports the claim that the enhancement was not of natural origin. Our findings demonstrate that identifying pollutants and tracing them to their sources is achievable\, with significant implications for monitoring and mitigating space emissions in the atmosphere. \nLinks:\nMetals from spacecraft reentry in stratospheric aerosol particles – publication
URL:https://www.a3veen.nl/event/measurement-of-a-lithium-plume-from-the-uncontrolled-re-entry-of-a-falcon-9-rocket-publication/
CATEGORIES:Astronomie,Bibliotheek,Fysica,kennis,Klimaat
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