A survey conducted by an international team of scientists reveals the negative impact of humans on the environment regarding the population of trees on Earth.
The study of new satellite imagery in combination with the analysis of data related to supercomputer show that once the man found the way to cut trees, then the population of trees in the world has decreased by 45%!
Experts estimate that 12,000 years ago when man had not yet found ways to cut trees, their population in the world was numbered about six trillion. The new study estimates the number of trees that currently exist on Earth is about 3 trillion and the researchers believe that the vast majority of lost trees have been cut by human hand.
The good news of the new study is that the number of trees on Earth today is eight times greater than it was previously believed. Researchers estimate that man cuts about 15 billion trees annually mainly from the tropical forests where there are the oldest and largest trees in the planet.
“Trees are among the most prominent and critical organisms on Earth, yet we are only recently beginning to comprehend their global extent and distribution,” said Thomas Crowther, a Yale Climate & Energy Institute postdoctoral fellow at the Yale School of Forestry & Environmental Studies (F&ES) and lead author of the study.
“We’ve nearly halved the number of trees on the planet, and we’ve seen the impacts on climate and human health as a result,” Crowther said. “This study highlights how much more effort is needed if we are to restore healthy forests worldwide.”
The study conducted by researchers from 15 countries and published in the journal Nature.
Source: Yalenews
Source: Yalenews
A new study, led by the University of New South W...
Two energy companies, Centrica and Mitsubishi Pow...
The world’s largest nuclear fusion reactor was in...
Researchers at the Royal Melbourne Institute of T...
A new study published on August 30, suggests that...
The UN Environment Programme (UNEP) warned on Tue...