AMAZON DROUGHT: GREATER IMPACT ON WARMING THAN USA IN A
Read the entire article: www.stopglobalwarming.org
Condensed by Native Village
Amazon droughts kills
trees that normally absorb CO2. The dead
trees send more CO2 into the atmosphere as
they rot. This lessens surviving trees' CO2
Image: K. Didan, University
of Arizona via NASA
The Amazon's rainforests are an important guard against
global warming. They absorb over 25% of the world's carbon
However, that may change.
Scientists say a record drought in 2010 killed billions
of trees in the Amazon Rainforest. They fear that the
forest itself might become a major source for
greenhouse gas emissions
British ecologist Simon
from the University of Leeds says, "If events like this
happen more often, the Amazon rainforest would reach a
point where it shifts from being a valuable carbon sink
slowing climate change to a major source of greenhouse
gases that could speed it up."
A study by Leeds and his team found
Amazon forest would not absorb
its usual 1,500,000 metric tons of
both 2010 and
The dead and dying
trees would release 5,000,000,000 metric tons
The total impact will add about 8,000,000,000
metric tons of CO2 to our air.
8,000,000,000 metric tons of CO2 is far greater than
America's yearly emissions of 5,400,000,000.
There's a growing recognition of
the connections between global warming and our food
systems. Global climate change disrupts and destroys
growing seasons for many plants. i
"…the evidence does, in fact,
suggest that what we’re getting now is a first taste of
the disruption, economic and political, that we’ll face
in a warming world," said economist Paul Krugman, a
Nobel Prize winner. "And given our failure to act on
greenhouse gases, there will be much more, and much
worse, to come."
Scientists have long predicted that intense winters and
heavy snowfalls may be caused by global
warming. A warmer planet means more water evaporates
from the ocean, and that means more precipitation follows.
Less sea ice
also means warmer water and an increase in air pressure.
Melting ice has caused unusual and unstable patterns in the
"polar vortex" where the coldest air on earth
When air pressure inside the Polar Vortex increases, it becomes unstable like a top that's
losing its spin. When that happens, frigid polar air can
escape boundaries that
normally confines it.
This may be what's causing our severe winter weather.
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