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DTSTART;VALUE=DATE:20260511
DTEND;VALUE=DATE:20260512
DTSTAMP:20260607T141027Z
CREATED:20260511T124630Z
LAST-MODIFIED:20260607T141027Z
UID:141233-1778457600-1778543999@www.a3veen.nl
SUMMARY:Growth and formaldehyde degradation of photoheterotrophic Methylobacterium within radiation fogs - publication
DESCRIPTION:The report ‘Growth and formaldehyde degradation of photoheterotrophic Methylobacterium within radiation fogs‘ subscibes fog and an incredible discovery that it’s essentially a complex biosphere. \nThe atmosphere contains thousands to millions of bacterial cells per cubic meter. However\, it remains unclear if microbes are at all active or growing in situ or whether they are merely being transported in an inactive state. Based on the analyses of 32 overland radiation fog events over a 2-year period\, we show that fog waters\, with bacterial concentrations similar to those in continental or marine bodies of water\, contain microbiomes well differentiated in composition from those in the dry aerosol microbiomes that occur locally before\, during\, or after fog events. They are consistently and strongly enriched in photoheterotrophic Methylobacterium species\, suggesting that fog populations may be metabolizing volatile C1 compounds in situ\, although phototrophy seems much less important. Indeed\, metabolically active bacteria in the fog\, and representative isolates of the main field populations\, can degrade formaldehyde at unprecedently high rates; most of this activity seems to play a detoxification role. The increase in bacterial aerobiome counts upon intervening fog events\, the dependence of microbial concentration on ambient temperature\, the increases in cell size and frequency of dividing cells in fog water with respect to cells in interstitial aerosols of fogs\, in addition to their metabolic capacity\, all suggest that the fog water microbiome is actually growing. Consequently\, droplets of atmospheric water should be considered a potential aquatic microhabitat. Our results highlight the fog microbiome’s role in atmospheric chemistry and have implications for fog harvesting as a source of fresh water for human use. \nLinks:\nTiny Bacteria in the Fog May Be Helping Clean the Air
URL:https://www.a3veen.nl/event/growth-and-formaldehyde-degradation-of-photoheterotrophic-methylobacterium-within-radiation-fogs-publication/
CATEGORIES:Bibliotheek,Biologie,kennis
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20260519
DTEND;VALUE=DATE:20260520
DTSTAMP:20260520T162153Z
CREATED:20260519T160518Z
LAST-MODIFIED:20260520T162153Z
UID:140692-1779148800-1779235199@www.a3veen.nl
SUMMARY:Nieuw evenwicht in het energiesysteem : Kritieke materiaalvraag voor een klimaatneutraal Nederland in 2040 - publicatie
DESCRIPTION:Schoner en onafhankelijker energiesysteem binnen planetaire grenzen is haalbaar met strategisch beleid. \nMet strategische beleidskeuzes kan Nederland haar energie-onafhankelijkheid vergroten en tegelijkertijd het klimaat en cruciale ecosystemen beschermen. Dat blijkt uit het onderzoek ‘Nieuw evenwicht in het energiesysteem‘ van Copper8\, Quintel en Polaris Sustainability in opdracht van Greenpeace Nederland. Het onderzoek laat zien dat een explosieve groei van transitiemetalen\, voor onder andere zonnepanelen\, windturbines en batterijen\, geen gegeven is\, maar een keuze. Ten opzichte van de huidige projecties kan de vraag naar transitiemetalen in de periode tot en met 2050 met 42 – 49% worden verlaagd door energiebesparing en innovatie. Mijnbouw in kwetsbare ecosystemen\, waaronder de diepzee\, is dan niet nodig. \nLinks:\nNederlandse energietransitie mogelijk met veel minder kritieke mineralen en metalen
URL:https://www.a3veen.nl/event/nieuw-evenwicht-in-het-energiesysteem-kritieke-materiaalvraag-voor-een-klimaatneutraal-nederland-in-2040-publicatie/
CATEGORIES:Bibliotheek,Energie,kennis,Klimaat,Milieu,Onderzoek
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