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  • KomPass: Article from 28.11.2023 | Last changed: 12.12.2024

    FW-I-1: Tree species composition in forest nature reserves – case study

    The picture shows a near-natural forest with beech trees. In the foreground there is an uprooted tree lying on the ground.

    … there have been indications of shifts in tree species compositions up to 2014, which cannot be attributed to climate-related changes. The majority of stands … by climate change. As far as the second and third observation periods from 2014 to 2018 and from 2019 to 2023 respectively are concerned, the direction of … sylvatica) has continued to increase – albeit to a much lesser extent than prior to 2014. As far as oak species are concerned, a minor decrease, and from 2019 to 2023, …

  • KomPass: Article from 28.11.2023 | Last changed: 11.12.2024

    WW-I-7: Water levels in lakes

    The picture shows a footbridge leading across the dried-up sandy and stony shore area of a lake. A bridge and some residual water are visible in the background.

    … for each lake a mean value is calculated using the deviations from the index year 2014, for which the water level value is set at ‘0’. This makes it possible to … value for all the lakes concerned on the basis of these deviations. The year of 2014 was chosen as the index year in order to achieve an illustration which is … clearly showed negative deviations of the lake water levels from the index year 2014, there was also a particularly high number of months with non-attainment of the …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    Effects chain – Example presentation from the ‘agriculture’ action field

    … 50 years, the speed of this temperature rise has distinctly increased. Prior to 2014 Germany had never had an annual mean temperature of more than 10 °C. By contrast since 2014 this value has been exceeded five times. However, as in the past, there is … 50 years, the speed of this temperature rise has distinctly increased. Prior to 2014 Germany had never had an annual mean temperature of more than 10 °C. By …

  • KomPass: Article from 28.11.2023 | Last changed: 18.12.2024

    BS-R-4: Active emergency relief responders in civic protection

    The picture shows three emergency vehicles operated by the fire brigade and the THW emergency relief organisation: The vehicles are standing on a National Road, one of them is a fire-fighting group vehicle. A man wearing a high-visibility vest and a pair of THW livery trousers can be seen running along the middle gangway.

    … protection The number of emergency relief responders declined between 2000 and 2014, above all owing to a decline in the number of members of fire brigades. Since … Looking at the development of the past two decades, it is clear that up until 2014 there has been a significant decline in the number of active members of fire … the age group of 20 to 25 year olds. For the TWH, the mean of the years 2000 to 2014 amounted to some 41,000 active volunteers. In 2015 the number increased to …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    IG-R-2: Exposure of Germany’s foreign trade to global climate change

    The picture shows a large container port beneath a low sun. Visible in the foreground are a laden container ship and a few loading cranes. In the background there is another container ship docked at the port.

    … to a methodological change that involved a sub-indicator of the ND-GAIN Index from 2014 onwards, there are limitations to the assessment of the chronological … foreign trade. This is the reason for the discontinuity in the time series covering 2014. With regard to the short period since 2014 it is possible to see that the proportion of exports in respect of countries …

  • KomPass: Article from 30.03.2017 | Last changed: 14.02.2019

    KomPass Projects

    Blackboard with numerous notes.

    … for adaptation policy and adaptive capacity in Germany Project duration: 2011-2014, FKZ 3711 41 102 This project aims at a better understanding of the adaptive … – decision-making aids for climate change adaptation Project duration: 2011-2014, FKZ 3710 41 139 The aim of the project was to assess and further develop … or milieus. Climate resilient and sustainable infrastructures Project duration: 2014-2017, FKZ 3714 48 101 0 Climate resilience of infrastructures is an important …

  • KomPass: Article from 28.11.2023 | Last changed: 11.12.2024

    WW-I-8: Water temperature in lakes

    The picture shows a mountain lake in glaring sunlight. A mountain chain is visible in the background.

    … For each lake a mean value is calculated using the deviations from the index year 2014, for which the temperature value is set at ‘0’. The values of these deviations are used to calculate the mean value across all the lakes. 2014 is the earliest year for which data are available from all the lakes … For each lake a mean value is calculated using the deviations from the index year 2014, for which the temperature value is set at ‘0’. The values of these deviations …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    BD-R-3: Protected areas

    The picture shows a sign commonly used in the eastern states of Germany to indicate a nature reserve. The sign depicts the outline of a black owl against a yellow background. The sign is located on the edge of a meadow. A partly wooded hill rises behind the sign.

    … While the terrain of nature reserves increased steadily between 2000 and 2014 and has been on the increase again since 2018, the terrain of national parks … as well as the creation of the Black Forest National Park in Baden-Württemberg in 2014 and Hunsrück-Hochwald in Rhineland-Palatinate and Saarland in 2015. The … While the terrain of nature reserves increased steadily between 2000 and 2014 and has been on the increase again since 2018, the terrain of national parks …

  • KomPass: Article from 28.11.2023 | Last changed: 11.12.2024

    GE-I-4: Ragweed pollen burden

    The picture shows a close-up of a ragweed plant in flower.

    … far amounting to 436 pollen per cubic metre air annually was measured in Dresden in 2014. So far there are no statistically significant trends. The same is true for all … of the pollen data shown. The nationwide high concentrations of ragweed pollen in 2014 were caused by persistent wind dispersal of pollen from the Hungarian basin … far amounting to 436 pollen per cubic metre air annually was measured in Dresden in 2014. So far there are no statistically significant trends. The same is true for all …

  • KomPass: Article from 28.11.2023 | Last changed: 18.12.2024

    HUE-4: Adaptation to climate change at the municipal level

    The picture shows a slightly hilly landscape characterised by agricultural activity. The centre of the picture shows a village embedded in the landscape. In an almost cloudless sky which is already tinged with orange, you can see a low sun wrapping the landscape in a warm light.

    … While in the 2012 survey, 58 % of respondents answered this favourably, by 2014 this proportion had diminished to 41 %, a distinctly lower percentage, and by … the proportion had dwindled to only 30 %. In 2021 this value increased again to the 2014 level. However, as before, the population obviously still perceives notable … While in the 2012 survey, 58 % of respondents answered this favourably, by 2014 this proportion had diminished to 41 %, a distinctly lower percentage, and by …

  • KomPass: Article from 28.11.2023 | Last changed: 18.12.2024

    HUE-2: Usage of warning and information services

    The picture shows a hand holding a smartphone. The smartphone screen is blue and shows the logo of DWD’s WarnWetter App. In the picture’s background, the black clouds of a thunderous sky are visible.

    … all respondents stated that they make use of warning and information services. In 2014, the outcome of the subsequent survey indicated a sharp increase in usage to 61 … intended to do so in future, had moved in the opposite direction. While in 2012 and 2014, their proportion had still amounted to just 7 %, by 2021 this proportion … all respondents stated that they make use of warning and information services. In 2014, the outcome of the subsequent survey indicated a sharp increase in usage to 61 …