Extreme wildfires are becoming more common and increasingly affecting Earth's climate. Wildfires in boreal forests have attracted much less attention than those in tropical forests, although boreal forests are one of the most extensive biomes on Earth and are experiencing the fastest warming. We used a satellite-based atmospheric inversion system to monitor fire emissions in boreal forests.
View Article and Find Full Text PDFBackground: Discontinuation of antidepressant medication can be difficult due to withdrawal symptoms and relapse risk. Scientific evidence on the questions of who, when, and how to stop antidepressants is limited. In Amsterdam a multidisciplinary outpatient clinic was started to provide advice and guidance.
View Article and Find Full Text PDFSoutheast Australia experienced intensive and geographically extensive wildfires during the 2019-2020 summer season. The fires released substantial amounts of carbon dioxide into the atmosphere. However, existing emission estimates based on fire inventories are uncertain, and vary by up to a factor of four for this event.
View Article and Find Full Text PDFTo decrease our dependency for the diminishing source of fossils resources, bio-based alternatives are being explored for the synthesis of commodity and high-value molecules. One example in this ecological initiative is the microbial production of the biosurfactant sophorolipids by the yeast Starmerella bombicola. Sophorolipids are surface-active molecules mainly used as household and laundry detergents.
View Article and Find Full Text PDFThe triple oxygen isotope signature ΔO in atmospheric CO, also known as its "O excess," has been proposed as a tracer for gross primary production (the gross uptake of CO by vegetation through photosynthesis). We present the first global 3-D model simulations for ΔO in atmospheric CO together with a detailed model description and sensitivity analyses. In our 3-D model framework we include the stratospheric source of ΔO in CO and the surface sinks from vegetation, soils, ocean, biomass burning, and fossil fuel combustion.
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