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How to See (and Stop) Deforestation from Space | Tasso Azevedo | TED
Untertitel (174 Segmente)
(Chainsaw buzzing)
(Tree crashing)
20, 40, 60, 80, 100.
In every second on the last 12 months,
almost 20 trees were cut down in the Amazon.
See, deforestation and degradation is a kind of a disaster
for the only country in the world that is named after a tree.
Brazil is the fifth-largest greenhouse gas emitter on the planet,
but different from the top four,
the bulk of our emissions do not come from burning fossil fuels.
It actually comes from the way we use the land.
That's 75 percent of our emissions.
The majority of that results from forests being cut down.
You see, tropical forests are like the lungs of the Earth.
You heard something like that before, right?
When we cut them down,
they essentially exhalate the carbon that has been stored
for over many decades,
and they no longer exist to absorb the carbon
and to maintain the evapotranspiration
that keeps the cooling system of the planet.
In 2024, the countries with the largest areas of tropical forests,
like Brazil, Peru, Congo, Indonesia,
lost an area of forest the size of Rwanda.
And this forest has been converted to pasture, croplands,
urban areas, mining
and also suffering degradation from logging,
increased droughts and wildfires.
So we need to fight this degradation,
and in order to do so,
we have to understand what's happening on the ground.
So digital mapping can be a key role on that.
Because maps, maps have power,
but only if you can understand really what's going on on the ground.
So global satellite technology allows us to see the world
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