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  2. Effects of climate change on the water cycle - Wikipedia

    en.wikipedia.org/wiki/Effects_of_climate_change...

    The human-caused changes to the water cycle will increase hydrologic variability and therefore have a profound impact on the water sector and investment decisions. [9] They will affect water availability (water resources), water supply, water demand, water security and water allocation at regional, basin, and local levels. [9]

  3. Greenhouse gas emissions from wetlands - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions...

    Excess nutrients mainly from anthropogenic sources have been shown to significantly increase the N 2 O fluxes from wetland soils through denitrification and nitrification processes (see table below). [ 16 ] [ 8 ] [ 17 ] A study in the intertidal region of a New England salt marsh showed that excess levels of nutrients might increase N 2 O ...

  4. Human impact on the environment - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_the...

    A joint life cycle analysis by the US Department of Agriculture and the US Department of Energy found that substituting 100% biodiesel for petroleum diesel in buses reduced life cycle consumption of petroleum by 95%. Biodiesel reduced net emissions of carbon dioxide by 78.45%, compared with petroleum diesel.

  5. Ecosystem service - Wikipedia

    en.wikipedia.org/wiki/Ecosystem_service

    Nutrients are recycled through the life cycle of organisms as they die and decompose, releasing the nutrients into the neighboring environment. "The service of nutrient cycling eventually impacts all other ecosystem services as all living things require a constant supply of nutrients to survive". [22]

  6. Environmental impacts of beavers - Wikipedia

    en.wikipedia.org/wiki/Environmental_impacts_of...

    The beaver is a keystone species, increasing biodiversity in its territory through creation of ponds and wetlands. [1] [2] As wetlands are formed and riparian habitats enlarged, aquatic plants colonize newly available watery habitat. Insect, invertebrate, fish, mammal, and bird diversities are also expanded. [3]

  7. Freshwater marsh - Wikipedia

    en.wikipedia.org/wiki/Freshwater_marsh

    Wetlands have decreased by as much as 50% since 1900 and in some parts of the world by 90%. [19] [20] Inland wetlands, freshwater marshes making up about 20-25% of all freshwater wetlands globally, [21] have been decreasing approximately 1.2% each year throughout the last century (since 1900). [22] [23]

  8. Human impact on river systems - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_river_systems

    The process of human influence on nature, including rivers, is stated with the beginning of the Anthropocene, which has replaced the Holocene. [ citation needed ] This long-term impact is analyzed and explained by a wide range of sciences and stands in an interdisciplinary context.

  9. Wetland conservation - Wikipedia

    en.wikipedia.org/wiki/Wetland_conservation

    Wetland vary widely in their salinity levels, climate zones, and surrounding geography and play a crucial role in maintaining biodiversity, ecosystem services, and support human communities. [1] Wetlands cover at least six percent of the Earth and have become a focal issue for conservation due to the ecosystem services they provide.