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Black carbon (BC), spheroidal carbonaceous particles (SCP), and polycyclic aromatic hydrocarbons (PAH) are carbonaceous pollutants affecting the climate, environment, and human health. International regulations limit their emissions, and the present emissions are followed by monitoring programs. However, the monitoring programs have limited spatio-temporal coverage and only span the last decades.
Savannas cover a wide climatic gradient across large portions of the Earth’s land surface and are an important component of the terrestrial biosphere. Savannas have been undergoing changes that alter the composition and structure of their vegetation such as the encroachment of woody vegetation and increasing land-use intensity. Monitoring the spatial and temporal dynamics of savanna ecosystem stru
Vapor pressure deficit (VPD) is of great importance to control the land-atmosphere exchange of water and CO2. Here we use in situ observations to assess the performance of monthly VPD calculated from state-of-the-art data sets including CRU, ERA5, and Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA2). We investigate trends in VPD at global scale and for different
In boreal summer, circumglobal Rossby waves can promote stagnating weather systems that favor extreme events like heat waves or droughts. Recent work showed that amplified Rossby wavenumber 5 and 7 show phase-locking behavior which can trigger simultaneous warm anomalies in different breadbasket regions in the Northern Hemisphere. These types of wave patterns thus pose a potential threat to human
Amazonia is an environmentally heterogeneous and biologically megadiverse region, and its biodiversity varies considerably over space. However, existing knowledge on Amazonian biodiversity and its environmental determinants stems almost exclusively from studies of macroscopic above-ground organisms, notably vertebrates and trees. In contrast, diversity patterns of most other organisms remain elusi
Intensive agricultural management negatively affects both natural enemies of pests and pollinators. Such management also has the potential to adversely affect the ecosystem services that these communities confer. Organic management has been proposed as an alternative method to mitigate such problems by restoring the services provided by arthropod communities. We evaluated the effect of organic
This paper presents an object-based, global climatology (1979-2014) of strong large-scale ocean evaporation (SLOE) and its associated climatic properties. SLOE is diagnosed using an ''atmospheric moisture uptake efficiency'' criterion related to the ratio of surface evaporation and integrated water vapor content in the near-surface atmosphere. The chosen Eulerian identification procedure focuses o
The EU's farmers are no longer required to produce commodities to receive direct payments as long as they keep their land in good condition. Some believe this is bad for development because it encourages passive farming. We evaluate, using a real options approach, the implications of decoupled payments for the desirability and optimal timing of agricultural land development when considering sunk i
The Intergovernmental Panel on Climate Change (IPCC) has provided periodic assessments of the state of knowledge on climate change for 30 years. While these assessments have been central to the making of international climate policy, their relevance has been questioned in the post-Paris era. Can the IPCC's global kinds of knowledge match the demands of an increasingly decentralized and polycentric
Background. Knowledge on the globally outstanding Amazonian biodiversity and its environmental determinants stems almost exclusively from aboveground organisms, notably plants. In contrast, the environmental factors and habitat preferences that drive diversity patterns for micro-organisms in the ground remain elusive, despite the fact that micro-organisms constitute the overwhelming majority of li
Diabetes is associated with devastating chronic complications including coronary heart disease and stroke (macrovascular complications) as well as microvascular disorders leading to damage of the small vessels and the development of retinopathy, nephropathy and neuropathy. The underlying pathogenesis is not clear, but hyperglycemia has been identified as an important risk factor. Previous work fro
Bumblebees are important pollinators for a wide range of crops and wild plants. Performance of their colonies depends on pollen and nectar as food resources, but flowering plants are scarce in modern agricultural landscapes. It is well-known that semi-natural habitats can enhance floral resources and bumblebee abundance, but the impact of different crop types and their heterogeneity at the landsca
The 2013 reform of the Common Agricultural Policy (CAP) introduced compulsory ‘greening’ measures with the goal to mitigate environmental degradation caused by intensive agriculture. This paper aims to investigate how the implementation of the Ecological Focus Areas (EFA) obligation will affect regional agricultural development, the economic performance of farms and land use (including choices of
Climate models provide the means of making projections of the future climate, under assumptions on alternative future land-use changes and greenhouse gas emissions. The basis for such climate projections is discussed in this chapter,´together with the presentation of overall climate scenario results of relevance for agriculture. The focus is on the period until 2050.
This paper contributes to sustainability transitions studies in delivering stronger focus and relevance on culture and discursive features to apprehend social resistances towards transition agendas, and the unprecedented emergence of the challenging antagonism of the ‘end of the world’ versus ‘the end of the month’ revealed by the case study of the Yellow Vests crisis in France since November 2018
Den här uppsatsen undersöker den svenska implementeringen av andelsbytesmekanismen för privatpersoner, som återfinns i artikel 8 i Fusions-Direktivet, hädanefter FD. Uppsatsen undersöker även hur Sverige har valt att skydda sin beskattningsrätt när aktieägaren emigrerar till en annan EU MS medan hen äger aktier erhållna via ett andelsbyte. Syftet bakom undersökningen är att utreda huruvida om den This thesis examines the Swedish implementation of the exchange of shares mechanism for individuals, found in article 8 of the Tax Merger Directive, henceforth TMD, and how Sweden has chosen to safeguard its taxation right when the shareholder holding exchanged shares emigrates to another EU MS. The purpose behind this is to examine if the Swedish im-plementation, given the more recent case-law fr
Syfte: Att avgöra om det går att påvisa ineffektivitet på OMX Large Cap med ett kortsiktigt tradingfilter, baserat på pris och volym. Ett tradingfilter som genererar överavkastning är ett starkt argument mot en effektiv marknad. Metod: Studien görs på perioden 2002-2006. Pris- och volymfilter kombineras för att försöka skapa överavkastning jämfört med en B&H-portfölj. Det kombinerade filtrets
MeToo-rörelsen är en internationell rörelse som har uppmärksammat problemet med sexuella trakasserier och övergrepp. Rörelsen började 2006 av Tarana Burk men växte sig inte stor förrän år 2017, då många kända kvinnor gick ut offentligt med sina historier om övergrepp. Rörelsen har sedan spridit sig till andra länder och har blivit ett viktigt samtalsämne. Aftonbladets artiklar mellan 2017 till 20
