Researchers from Yale University have learned that the Earth has three (3) trillion trees. But even though that sounds like a big number, they stress that the planed has lost 46 percent (46%) of its trees in the 12.000 years that humans have been around.
Dr. Thomas Crowther, post-doctoral fellow from Yale University’s School of Forestry & Environmental Studies and the study’s lead researcher, offered a statement informing that, in his opinion, the finding is a pretty grim one.
He went on to add that somewhere around 74.000 square miles of trees are being destroyed each year, on a global level. What this means is that we’re directly responsible for ridding the planet of 15.3 billion trees every year. Dr. Crowther stressed that “That’s an astronomical figure”.
While he did anticipate that human beings would prove to be one of the main causes for concern, he never expected them to “come out as the strongest control on tree density”. This was the case for not just one (1) or two (2) of the ecological areas examined for the study, but for all of them. Dr. Crowther is convinced that the findings highlight “how big of an impact humans are having on the Earth at a global scale”.
The investigation began two (2) years ago, when the researchers decided to asses a baseline of the trees’ density across the planet to help a nonprofit project led by German experts – Plant for the Planet. The organization picked up where the United Nations Environment Program left off in terms of planting 12 billion trees in just four (4) years.
The effort aims to increase the global number of trees in an attempt to clean the Earth’s atmosphere of carbon dioxide (CO2) so that global warming may be kept under control.
However, before the researchers could deduce how many trees they need to plant to reach a helpful number, they first had to find out how many trees there are on the planet. After analyzing the data, Plant for the Planet said that they plan on planting 1 trillion trees by the year 2020.
Dr. Crowther and his team also shared that 42.8 percent (42.8%) of the planet’s trees are tropics and subtropics, up 24.2 percent (24.2%) of the planet’s trees are boreal forests, and 21.8 percent (21.8%) of the planet’s trees are temperate biomes.
For the study, the researchers examined 429.775 measurements of tree density from across all continents except Antarctica.
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