Browsing by Subject "Trend"

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Comprehensive assessment of climate extremes in high-resolution CMIP6 projections for Ethiopia
(2023) Rettie, Fasil M.; Gayler, Sebastian; Weber, Tobias K. D.; Tesfaye, Kindie; Streck, Thilo
Climate extremes have more far-reaching and devastating effects than the mean climate shift, particularly on the most vulnerable societies. Ethiopia, with its low economic adaptive capacity, has been experiencing recurrent climate extremes for an extended period, leading to devastating impacts and acute food shortages affecting millions of people. In face of ongoing climate change, the frequency and intensity of climate extreme events are expected to increase further in the foreseeable future. This study provides an overview of projected changes in climate extremes indices based on downscaled high-resolution (i.e., 10 × 10 km2) daily climate data derived from global climate models (GCMs). The magnitude and spatial patterns of trends in the projected climate extreme indices were explored under a range of emission scenarios called Shared Socioeconomic Pathways (SSPs). The performance of the GCMs to reproduce the observed climate extreme trends in the base period (1983–2012) was evaluated, the changes in the climate projections (2020–2100) were assessed and the associated uncertainties were quantified. Overall, results show largely significant and spatially consistent trends in the projected temperature-derived extreme indices with acceptable model performance in the base period. The projected changes are dominated by the uncertainties in the GCMs at the beginning of the projection period while by the end of the century proportional uncertainties arise both from the GCMs and SSPs. The results for precipitation-related extreme indices are heterogeneous in terms of spatial distribution, magnitude, and statistical significance coverage. Unlike the temperature-related indices, the uncertainty from internal climate variability constitutes a considerable proportion of the total uncertainty in the projected trends. Our work provides a comprehensive insight into the projected changes in climate extremes at relatively high spatial resolution and the related sources of projection uncertainties.
Plant-based foods for future. Results of consumer and professional expert interviews in five European countries - EIT-Food Project „The V-Place“
(2020) Gebhardt, Beate; Hadwiger, Klaus
This working paper documents the methodology of the qualitative studies and the resulting insights, as part one of the two-stage study of the Project „The V-Place - Enabling consumer choice in Vegan or Vegetarian food products“ in six European countries. The interviews with 70 consumers and professional experts in total has already been completed. Still in 2020, a quantitative consumer survey will be conducted in Germany, Denmark, France, Italy, Spain and Poland. The project is led by the Hohenheim Research Center for Bioeconomy, University of Hohenheim. The Department of Agricultural Markets at the University of Hohenheim is responsible for the qualitative studies. This project is funded by EIT Food, the Food Innovation Community of the European Institute of Innovation and Technology (EIT). EIT is an EU institution under Horizon 2020, the EU Framework Programme for Research and Innovation.