Another article on plastic that needs to be shared around the world. Stop using plastic, people!
This article is from Science Daily:
More than 8. 3 billion tons of plastics made: Most has now been discarded
Humans have created 8.3 billion metric tons
of plastics since large-scale production of the synthetic materials
began in the early 1950s, and most of it now resides in landfills or the
natural environment, according to a study published in the journal Science Advances.
Led by a team of scientists from the University of Georgia, the
University of California, Santa Barbara and Sea Education Association,
the study is the first global analysis of the production, use and fate
of all plastics ever made.
The researchers found that by 2015, humans had generated 8.3 billion
metric tons of plastics, 6.3 billion tons of which had already become
waste. Of that waste total, only 9 percent was recycled, 12 percent was
incinerated and 79 percent accumulated in landfills or the natural
environment.
If current trends continue, roughly 12 billion metric tons of plastic
waste will be in landfills or the natural environment by 2050. Twelve
billion metric tons is about 35,000 times as heavy as the Empire State
Building.
"Most plastics don't biodegrade in any meaningful sense, so the
plastic waste humans have generated could be with us for hundreds or
even thousands of years," said Jenna Jambeck, study co-author and
associate professor of engineering at UGA. "Our estimates underscore the
need to think critically about the materials we use and our waste
management practices."
The scientists compiled production statistics for resins, fibers and
additives from a variety of industry sources and synthesized them
according to type and consuming sector.
Global production of plastics increased from 2 million metric tons in
1950 to over 400 million metric tons in 2015, according to the study,
outgrowing most other human-made materials. Notable exceptions are
materials that are used extensively in the construction sector, such as
steel and cement.
But while steel and cement are used primarily for construction,
plastics' largest market is packaging, and most of those products are
used once and discarded.
"Roughly half of all the steel we make goes into construction, so it
will have decades of use -- plastic is the opposite," said Roland Geyer,
lead author of the paper and associate professor in UCSB's Bren School
of Environmental Science and Management. "Half of all plastics become
waste after four or fewer years of use."
And the pace of plastic production shows no signs of slowing. Of the
total amount of plastics produced from 1950 to 2015, roughly half was
produced in just the last 13 years.
Read the full article here:
https://www.sciencedaily.com/releases/2017/07/170719140939.htm