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What if solar energy becomes really cheap? A thought experiment on environmental problem shifting
Solving one environmental problem may often invoke or intensify another one. Such environmental problem shifting (EPS) is a neglected topic in global sustainability research. Indeed, it is difficult to study as it requires the merging of insights from various research areas. Here we identify relevant studies, and provide an illustration and guidelines for the systematic study of EPS. As a modest thought experiment to illustrate…
Sustainability of deep-sea fish species under the European Union Common Fisheries Policy
The historical expansion of fishing industries into the deep sea has been described at the global level, but corresponding patterns are less well known at other geographical scales. The International Council for the Exploration of the Sea (ICES) has stated that most deep-sea species exploited by European fishing industries are harvested outside safe biological limits. As a result, the European Union commenced regulating exploitation of…
The Common Fisheries Policy: An enforcement problem
Marine populations in Europe are in decline due to the unsuccessful results of the Common Fisheries Policy. By combining data of scientific recommendations from ICES, TACs approved and reported landings with an age-structured model, the objectives of this paper are to investigate the level of compliance of the TAC regulation, and the level of enforcement and its economic impact on fishery resources. The results presented…
Growth and reproductive simulation of candidate shellfish species at fish cages in the Southern Mediterranean: Dynamic Energy Budget (DEB) modelling for integrated multi-trophic aquaculture
A Dynamic Energy Budget (DEB) model is used to simulate growth and reproduction of the shellfish Mytilus galloprovincialis and Crassostrea gigas in an integrated multi-trophic aquaculture (IMTA) farm scenario situated in the Southern Mediterranean (the Gulf of Castellammare, Sicily). We modelled the effect of primary production enrichment at fish cages on shellfish growth and life history traits using 4 years-hourly temperature data (01 January 2006–31…
(Un)observed scientific advice, social-ecological feedbacks and the North Sea cod stock
This paper estimates the economic value of the North Sea cod (Gadus morhua) stock under recent catch and several recovery scenarios. The research presents results on: a) what the value of catches and biomass would have been if the EU fishing fleet hadfollowed the ICES scientific recommendations (SRs) and Total Allowable Catches (TACs) in the 1986–2010 period; and b) what the value of catches and…
Valuing individual characteristics and the multifunctionality of urban green spaces: The integration of sociotope mapping and hedonic pricing
We categorize Stockholm’s urban green spaces according to the use values and social meanings they support, based on a sociotope mapping, and estimate their impact on property prices with a hedonic pricing model. The approach allows us to identify the most and least desired green space characteristics (attributes) and to assess the willingness to pay for the multifunctionality of green spaces. To do this, we…
Global aquaculture more sustainable in the last 20 years
A new study in Nature shows that the diverse aquaculture industry has made significant strides toward sustainability but also highlights necessary measures for improvement. The findings can help shape how consumers think about the seafood they buy, and inform governance strategies critical to global food and nutrition security. Twenty years ago, an analysis led by Stanford University, sparked controversy by highlighting fish farming’s damage to…
Nobel Prize Summit: Truth, Trust and Hope
An international summit 24-26 May will bring together Nobel laureates and other experts to explore the problem of misinformation and measures that organizations, policymakers, and citizens can take to combat misinformation, restore trust in science and create a hopeful future. The hybrid summit will take place online and in Washington D.C. Misinformation is eroding peoples trust in science and runs the risk of becoming one…
Automated framing of climate change? The role of social bots in the Twitter climate change discourse during the 2019/2020 Australia bushfires
Extreme weather-related events like wildfires have been increasing in frequency and severity due to climate change. Public online conversations that reflect on these events as climate emergencies can create awareness and build support for climate action but are also used to spread misinformation and climate change denial. To what extent automated social media accounts—“social bots”—amplify different perspectives of such events and influence climate change discourses,…
Course: AI for the Planet
A free online course on how to apply AI-methods (“deep learning”) to analyze satellite images related to land use change and deforestation will bw held 2 October 2020. Our living planet and the climate system are changing rapidly. Studying these changes have become increasingly possible thanks to developments in advanced satellite imaginary. Growing volumes of image data, however, also pose difficult challenges to scientists. As…
