World Wetlands Day 2023 is a humans challenge, an quick eye on the future of water - ????? ??????? ??????? ?????? 2023? ???? ????? ??? ????????
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Wetlands are ecosystems where water is the primary factor controlling the environment and the associated plant and animal life. A broad definition of wetlands includes both freshwater, marine and coastal ecosystems such as all lakes and rivers, underground aquifers, swamps and marshes, wet grasslands, peatlands, oases, estuaries, deltas and tidal flats, mangroves and other coastal areas, coral reefs, and all human-made sites such as fishponds, rice paddies, reservoirs, and saltpans.
These lands are critical to people and nature, given the intrinsic value of these ecosystems and their benefits and services, including their environmental, climate, ecological, social, economic, scientific, educational, cultural, recreational, and aesthetic contributions to sustainable development and human wellbeing.
Though they cover only around 6 percent of the Earth’s land surface, 40 percent of all plant and animal species live or breed in wetlands. Wetland biodiversity matters for our health, our food supply, for tourism, and for jobs.
Wetlands are vital for humans, for other ecosystems, and for our climate, providing essential ecosystem services such as water regulation, including flood control and water purification. More than a billion people across the world depend on wetlands for their livelihoods – that’s about one in eight people on Earth.
Why they are in danger
Wetlands are among the ecosystems with the highest rates of decline, loss and degradation. Indicators of current negative trends in global biodiversity and ecosystem functions are projected to continue in response to direct and indirect drivers such as rapid human population growth, unsustainable production and consumption, and associated technological development, as well as the adverse impacts of climate change.
Wetlands are disappearing three times faster than forests and are Earth’s most threatened ecosystem. In just 50 years—since 1970—35% of the world’s wetlands have been lost. Human activities that lead to the loss of wetlands include drainage and infilling for agriculture and construction, pollution, overfishing and overexploitation of resources, invasive species, and climate change.
This vicious cycle of wetland loss, threatened livelihoods, and deepening poverty is the result of mistakenly seeing wetlands as wastelands rather than life-giving sources of jobs, incomes, and essential ecosystem services. A key challenge is changing mindsets to encourage governments and communities to value and prioritize wetlands.
How do wetlands combat climate change?
Wetlands are a natural solution to the era-defining global threat of climate change. They absorb carbon dioxide, which helps slow global warming and reduce pollution; hence, they have often been referred to as the “kidneys of the earth.” Peatlands alone store twice as much carbon as all the world's forests combined. But, when drained and destroyed, wetlands emit vast amounts of carbon.
Wetlands also provide a buffer against the impacts of floods, droughts, hurricanes, and tsunamis and build resilience to climate change.
What we can do?
It is urgent that we raise national and global awareness about wetlands in order to reverse their rapid loss and encourage action to conserve and restore them. World Wetlands Day is the ideal time to increase people’s understanding of these critically important ecosystems.
“Revive and restore degraded wetlands” is the theme for 2023, highlighting the importance of wetlands’ restoration since well-restored wetlands can provide many of the services performed by the original natural wetland.
An urgent call to action and to invest financial, human, and political capital is this year's appeal to save the world’s wetlands from disappearing altogether—and to restore those we have already lost.
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