Amazon rainforest reaching tipping point, researchers say
| BBC | Science | Climate Change | 19 hours ago |
| By Helen Briggs Environment correspondent |
"The trees are losing health and could be approaching a tipping point - basically, a mass loss of trees," said Dr Chris Boulton of the University of Exeter.
The Amazon contains between 90 and 140 billion metric tons of carbon
The Amazon rainforest is moving towards a "tipping point" where trees may die off en masse, say researchers.
A study suggests the world's largest rainforest is losing its ability to bounce back from damage caused by droughts, fires and deforestation.
Large swathes could become sparsely forested savannah, which is much less efficient than tropical forest at sucking carbon dioxide from the air.
The giant forest traps carbon that would otherwise add to global warming.
But previous studies have shown that parts of the Amazon are now emitting more carbon dioxide than can be absorbed.
It’s everywhere: in the rain, snow, our food, our waters, even in the human placenta! Mercury is poisoning life on Earth.
ARE YOU AWARE Artisanal miners' gold ore processing produces 20% of the world's supply of gold used in our jewellery, iPad’s, iPhone, computers, and other electronics devices and is the world's largest anthropogenic source of deadly mercury pollution overtaking coal fired plants mercury emissions in 2017?
Artisanal miners' ore processing uses mercury, a deadly neurotoxin and precursor to an even deadlier neurotoxin Methylmercury @ 100 times more potent than elemental mercury to extract liberated gold from crushed or milled ore by forming an amalgam which is vaporized leaving the gold while releasing 2,000 tonnes of mercury to our atmosphere annually .
Mercury pollution is documented in 2021 by Oxford University earth scientists to stay airborne up to one year then precipitates back to Earth in the form of rain and snow.
The morbid irony lies in the fact the same vaporized mercury is polluting the air we all breathe, contaminating our drinking water, polluting the Oceans we swim, poisoning the fish we consume especially tuna where mercury bioaccumulates the most causing health issues, and global biodiversity destruction.
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