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A carbon sink is a natural or artificial carbon sequestration process that "removes a ... Coastal blue carbon includes mangroves, salt marshes and seagrasses. These ...
Blue carbon is defined by the IPCC as "Biologically driven carbon fluxes and storage in marine systems that are amenable to management." [2]: 2220 Another definition states: "Blue carbon refers to organic carbon that is captured and stored by the oceans and coastal ecosystems, particularly by vegetated coastal ecosystems: seagrass meadows, tidal marshes, and mangrove forests."
A “managed realignment” scheme at Abbotts Hall in 2002 saw old sea walls breached in five spots along a 3km (1.9 mile) stretch to create nearly 50 hectares of new saltmarsh and intertidal ...
Wetland soil, particularly in coastal wetlands such as mangroves, sea grasses, and salt marshes, [56] is an important carbon reservoir; 20–30% of the world's soil carbon is found in wetlands, while only 5–8% of the world's land is composed of wetlands. [57]
Salt marsh during low tide, mean low tide, high tide and very high tide (spring tide). A coastal salt marsh in Perry, Florida, USA.. A salt marsh, saltmarsh or salting, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides.
Coastal wetlands, such as tropical mangroves and some temperate salt marshes, are known to be sinks for carbon that otherwise contribute to climate change in its gaseous forms (carbon dioxide and methane). [118]
Nitrous oxide is a greenhouse gas with a global warming potential 300 times that of carbon dioxide and is the dominant ozone-depleting substance emitted in the 21st century. [10] Excess nutrients mainly from anthropogenic sources have been shown to significantly increase the N 2 O fluxes from wetland soils through denitrification and ...
The Arctic experienced its second-hottest year on record, according to a NOAA report. The Arctic tundra has become a source of emissions, rather than a carbon sink.