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Study estimates around 3 trillion trees across the globe

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By NewsGram Staff-Writer

Washington: A new study has estimated that at least 3 trillion trees are currently present on earth. This is much more than the previously estimated figure of 400 billion trees.

tree-141692_640The study was carried out by Yale forestry researcher Thomas Crowther whose team used 429,775 ground-based measurements, satellite images and measurements and computer models to arrive at a global figure of 3.04 trillion trees, according to a report in Times of India.

The study was conceptualized when, Crowther was approached by United Nations-affiliated youth group that had set a goal of planting 1 billion trees to fight man-made climate change.

The study estimated that before the dawn of human civilization, there were at least 5.6 trillion trees on earth. But, today more than half of them have been wiped out. The study revealed that at least 15 billion trees are cut every year, but only 5 billion new trees are planted. Therefore, there is a net loss of 10 billion trees every year and at this rate, the earth will be completely devoid of trees within next 300 years.

The youth group-Plant for the Planet has now revised its goal and has set its new target to growing 18 billion trees.

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Wetlands Disappearing Faster Than Forests Due to Climate Change: Report

Authors of the report say biodiversity also is in a state of crisis. They say more than 25 percent of all wetlands plants and animals are at risk of extinction.

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climate, global warming, celsisu
A fisherman stands on his boat as he fishes at the Tisma lagoon wetland park, also designated as Ramsar Site 1141 in the Convention on Wetlands, in Tisma, Nicaragua. VOA

A new report warns that wetlands are disappearing three times faster than the world’s forests, with serious consequences for all life on earth due to climate change.

The Ramsar Convention on Wetlands is a global treaty ratified in 1971 by 170 countries to protect wetlands, which are ecosystems inundated by water, such as swamps, bogs and floodplains.

Unfortunately, the goal of this treaty is under threat. Ramsar Convention officials report about 35 percent of the world’s wetlands have been lost between 1970 and 2015.

Climate
Wetlands. Wikimedia Commons

State of crisis

Unless this situation is urgently reversed, Ramsar Convention Secretary-General Martha Roja Urrego warns the world will be in a state of crisis because wetlands are critical for all aspects of life.

“All the water that we use for consumption, irrigation and for hydro-electricity comes directly or indirectly from wetlands,” Urrego said. “Secondly, wetlands also have a main function in filtering waste and pollutants, so they act as the kidneys of the world. They filter the waste.”

Urrego says wetlands also are essential in regulating the global climate as peatlands store twice as much carbon as the world’s forests.

Amazon, Climate
This Sept. 15, 2009 file photo shows a deforested area near Novo Progresso in Brazil’s northern state of Para.. VOA

Several factors

The report finds wetland loss is driven mainly by such factors as climate change, population increase, changing consumption patterns and urbanization, particularly in coastal zones and river deltas.

Also Read: UN Agencies and Bangladesh Government Advances to Prevent Further Deforestation

Authors of the report say biodiversity also is in a state of crisis. They say more than 25 percent of all wetlands plants and animals are at risk of extinction.

Scientists say without biodiversity, there is no future for humanity, because the air people breathe, the water they drink and the food they eat ultimately rely on biodiversity in its many forms. (VOA)

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