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Environmental issues - Best ways to fight climate change

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Mike The Blacksmith Post number 25722 Posted: 7th July 2019     Subject: Environmental issues - Best ways to fight climate change
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Best way to fight climate change? Plant a trillion trees
The most effective way to fight global warming is to plant lots of trees, a study says. A trillion of them, maybe more.

And there's enough room, Swiss scientists say. Even with existing cities and farmland, there's enough space for new trees to cover 3.5 million square miles (9 million square kilometers), they reported in Thursday's journal Science. That area is roughly the size of the United States.

The study calculated that over the decades, those new trees could suck up nearly 830 billion tons (750 billion metric tons) of heat-trapping carbon dioxide from the atmosphere. That's about as much carbon pollution as humans have spewed in the past 25 years.

Much of that benefit will come quickly because trees remove more carbon from the air when they are younger, the study authors said. The potential for removing the most carbon is in the tropics.

"This is by faróby thousands of timesóthe cheapest climate change solution" and the most effective, said study co-author Thomas Crowther, a climate change ecologist at the Swiss Federal Institute of Technology in Zurich.

Six nations with the most room for new trees are Russia, the United States, Canada, Australia, Brazil and China.

https://phys.org/news/2019-07-climate-trillion-trees.html
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