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  • 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.

    … the uplands region. The increase in water temperature has far-reaching impacts on chemical, physical and biological processes occurring in water bodies. WW-I-8: Water … Water temperature is one of the key influencing variables affecting the physical, chemical and biological processes occurring in lakes and reservoirs. It influences … cover and the mixing and stratification conditions. The reaction speed of numerous chemical and bio-chemical processes accelerates at higher temperatures: For example, …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    Effects chain – Example presentation from the ‘trade and industry’ action

    … into various water bodies. Some companies, for example those active in the chemical industry, had to curtail their production thus enabling them to continue … stock.adobe.com In particular regarding water-intensive industries such as the chemical, metal or paper industries, the reduction of water demand is an important … into various water bodies. Some companies, for example those active in the chemical industry, had to curtail their production thus enabling them to continue …

  • KomPass: Area of action climate impact from 11.01.2022 | Last changed: 08.01.2026

    Climate impacts: Field of action industry and commerce

    Pipelines on a factory site

    … exported product groups include motor vehicles and motor vehicle parts, machinery, chemical products and data processing equipment as well as electrical and optical … arise from the development of new sales markets, especially in the construction and chemical industries. Especially in the area of climate protection and adaptation …

  • KomPass: Area of action climate impact from 11.01.2022 | Last changed: 08.01.2026

    Climate Impacts: Field of Action Water Resources, Water Management, Coastal and Marine Protection

    People standing on a seat bench surrounded by water

    … decreases and thus the oxygen supply of the water body. At the same time, many chemical and biological processes are accelerated by increased water temperature, … of WWTP effluent into surface waters during low flows may lead to more loads. Chemical water quality: Chemical water quality is determined by land use, intensity …

  • KomPass: Article from 28.11.2023 | Last changed: 18.11.2025

    GE-I-9: Ozone burden

    The picture shows the exhaust pipe of a motor car emitting exhaust gases.

    … troposphere, in other words, the lowest layer of the earth’s atmosphere, and photo-chemical reactions, there is a potential for the frequency of high air pollutant … is formed only as a result of intensive sun irradiation on account of complex photo-chemical processes produced by precursors − mostly nitrogen oxides and volatile … troposphere, in other words, the lowest layer of the earth’s atmosphere, and photo-chemical reactions, there is a potential for the frequency of high air pollutant …

  • KomPass: Article from 28.11.2023 | Last changed: 12.12.2024

    LW-R-5: Sales and application of pesticides

    The picture shows a close-up of a man in a rapeseed field, carefully grasping the yellow blossom of a rapeseed plant.

    … in the application of pesticides, while giving priority to the application of non-chemical plant protection agents. The National Action Plan for Sustainable use of … risks posed by the application of pesticides, and to limit the application of chemical pesticides to what is absolutely essential. It is intended that the NAP … in the application of pesticides, while giving priority to the application of non-chemical plant protection agents. The National Action Plan for Sustainable use of …

  • KomPass: Area of action adaptation from 06.01.2023 | Last changed: 07.01.2026

    Adaptation: Field of Action Biological Diversity

    colourful flowering summer meadow

    … measures include: treating ships' ballast water with mechanical, physical or chemical methods before it is replaced, establishing ecological barriers in … high costs and are ineffective when the population density of the neobiota is low. Chemical control involves the use of pesticides. The problem here is that the agents …

  • KomPass: Area of action adaptation from 11.01.2022 | Last changed: 08.01.2026

    Adaptation: Field of Action Building Industry

    Building crane in front of a blue sky

    … without basements. Safe storage of substances hazardous to water (e.g. oil and chemicals) is also of great importance. Another important measure is the preparation … without basements. Safe storage of substances hazardous to water (e.g. oil and chemicals) is also of great importance. Another important measure is the preparation …

  • KomPass: Article from 28.03.2022 | Last changed: 28.03.2022

    Climate models and scenarios

    A bridge over a dry river

    … contain uncertainties. Even if climate models were able to depict the physical and chemical relationships in the atmosphere very accurately, uncertainties would still … contain uncertainties. Even if climate models were able to depict the physical and chemical relationships in the atmosphere very accurately, uncertainties would still …

  • KomPass: Area of action climate impact from 11.01.2022 | Last changed: 08.01.2026

    Climate Impacts: Field of Action Building Industry

    Building crane in front of a blue sky

    … is necessary. Contamination with dirty water or water-polluting substances such as chemicals or oils (e.g. from an oil heating system) also plays a major role. These … is necessary. Contamination with dirty water or water-polluting substances such as chemicals or oils (e.g. from an oil heating system) also plays a major role. These …

  • KomPass: Article from 28.11.2023 | Last changed: 19.09.2024

    Cluster Water balance and water management

    The picture shows the tip of a level meter in a calm body of water.

    … WW-I-9 ) and lake stratification in summer, thus in turn strongly influencing the chemical and biological processes occurring in lakes. Likewise, watercourse … the associated direct impacts on water bodies. As far as the development of the chemical water quality is concerned, there is very little certainty at the moment. … WW-I-9 ) and lake stratification in summer, thus in turn strongly influencing the chemical and biological processes occurring in lakes. Likewise, watercourse …

  • 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.

    … stimulate the formation of ground-level ozone which – owing to complex photo-chemical processes – consists mostly of nitrogen oxides and volatile organic … stimulate the formation of ground-level ozone which – owing to complex photo-chemical processes – consists mostly of nitrogen oxides and volatile organic …