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A heat map of the planet showing methane emissions from wetlands from 1980 to 2021. Greenhouse gas emissions from wetlands of concern consist primarily of methane and nitrous oxide emissions. Wetlands are the largest natural source of atmospheric methane in the world, and are therefore a major area of concern with respect to climate change.
Climate change has a significant impact on wetlands, primarily through rising temperatures and altered precipitation patterns. These changes can lead to shifts in wetland ecosystems, affecting the distribution of plant and animal species. [ 21 ]
Data published in March 2023 in Nature Climate Change shows that annual wetland emissions over the past two decades were about 500,000 tonnes per year higher than what scientists had projected ...
Global climate change will probably make it more complex and expensive to ensure water security. [50] It creates new threats and adaptation challenges. [51] This is because climate change leads to increased hydrological variability and extremes. Climate change has many impacts on the water cycle.
In addition, climate change impacts oceanic currents and sea levels, further altering fish distributions and habitats. Furthermore, ocean acidification , resulting from increased CO2 levels, compromises the ability of shellfish and corals to form shells and skeletons, further endangering marine ecosystems and the communities that depend on them.
A simplified definition of wetland is "an area of land that is usually saturated with water". [14] More precisely, wetlands are areas where "water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season". [15]
Climate change can also cause methane releases from wetlands, marine systems, and freshwater systems. [92] ... Global Climate Change Impacts in the United States ...
Forests, inland wetlands, marine neritic, marine intertidal, and marine coastal/supratidal areas are all adequate for this bird. It can also live in artificial terrestrial zones designated for it.