I’ve written about dams in a previous blog post which I’ll
link at the bottom, in this post I addressed a number of issues dams cause and
their benefits however recently a new piece of information has become known. It
turns out that combined the world’s reservoirs creates more greenhouse gasses
than Canada.
This became apparent thanks to a literature review of more
than 200 different studies published in BioScience. This study deduced that one
gigaton of carbon dioxide is reduced from reservoirs annually as well as other
more ‘potent’ greenhouse gasses such as methane. It is believed that these emissions
occur from different sources depending on the age of a reservoir. Primarily it
is sourced from the decomposing of organic matter which was present when the
area was flooded, and secondly from the material which is halted in its journey
down the river.
This information is important as currently many different
countries are building multiple reservoir in an attempt to combat water depth
and with their emissions being 25% higher than previously estimated it is a visible
proportion of the total global emissions.
Check out this articles
I will update this post when the original source material becomes available
Thanks for reading!
Check out this video from Noticanarias
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