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Humans Have Cut Down More Than Half The Earth’s Trees… So Far

I haven’t blogged in a few months – I’ve moved house, started a new job, then helped my mother move house. So it’s been very busy and stressful. There’s been some hideous animal stories I’ve missed out on discussing in that time. I’m starting some volunteering soon, which will take up a lot of my writing time, but I’ll try to keep this blog going still.

Let’s talk about trees.

Credit: WWF – http://www.worldwildlife.org/threats/deforestation

A recent study by Yale University has calculated the shocking decline of tree density.

Using a combination of satellite images, data from forestry researchers on the ground and supercomputer number-crunching, scientists have for the first time been able to accurately estimate the quantity of trees growing on all continents except Antarctica.

The largest forests are found in tropical climates, particularly the Amazon, which is home to a staggering 43% of the world’s trees. The greatest tree density, however, is to be found in the colder climes of Russia, North America and Scandinavia. The scientists documented the influence of growing human populations on tree preservation, and found that, unsurprisingly, as civilizations expand, natural arboreal areas are deforested.

This news is certainly worrying – we have so far cut down around 46% of the world’s trees. The National Geographic claims that “the world’s rain forests could completely vanish in a hundred years at the current rate of deforestation.”

Crowther, who led the study, had this to say:

…human activity is the largest driver of tree numbers worldwide. While the negative impact of human activity on natural ecosystems is clearly visible in small areas, the study provides a new measure of the scale of anthropogenic effects, highlighting how historical land use decisions have shaped natural ecosystems on a global scale. In short, tree densities usually plummet as the human population increases. Deforestation, land-use change, and forest management are responsible for a gross loss of over 15 billion trees each year.

The WWF explains why forests are vital ecosystems:

forests provide habitats to diverse animal species; they form the source of livelihood for many different human settlements; they offer watershed protection, timber and non-timber products, and various recreational options; they prevent soil erosion, help in maintaining the water cycle, and check global warming by using carbon dioxide in photosynthesis.

But what everyday things can I do to slow deforestation, I hear you ask?

  • Go paperless.
  • Plant a tree.
  • Buy recycled products and then recycle them again.
  • Buy certified wood products from the FSC (Forest Stewardship Council).
  • Buy only what you will use.
  • Don’t use Palm Oil or products with Palm Oil.
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