natural phenomenons on Earth.
If you were to fall into its magma-filled center,
your body would quickly bubble up,
and disappear without a trace.
So if they're so good at getting rid of things,
why aren't we using them
to get rid of our garbage?
This is WHAT IF,
and here's what would happen if we
dumped our trash into volcanoes.
Americans alone generate about 254
million tons of trash per year,
and although dumping it into volcanoes
might sound like the perfect way to get rid of it,
it wouldn't be that easy.
Volcanoes might look like nature's
garbage incinerators, but in reality,
they're much more dangerous and unstable,
not to mention a lot harder to get to.
Would overcoming these
obstacles be worth it?
Or would dumping our trash in volcanoes
just cause even more harm to our planet?
The first obstacle in our quest
for volcanic garbage disposal
would be finding an active volcano
that can get the job done.
There are only about 1,500 potentially
active volcanoes worldwide,
and most of them aren't located anywhere
near humans, for obvious reasons.
That means that getting all
our trash to an active volcano
could turn out to be pretty expensive,
and once we get there we may find out it's
not even the right kind of active volcano.
The kind of volcano we'd be
looking for is called a shield volcano,
a slow-erupting variety that
contains the iconic lava lakes
that gradually spew out onto the Earth.
Unfortunately, these aren't very common.
You're more likely to come across their
angry cousins, known as stratovolcanoes.
Stratovolcanoes are known
for their explosive eruptions,
caused by the build-up of
pressure from hot gas and magma.
In other words, they're probably not
the safest location for the town dump.
But let's say we're lucky enough to find
ourselves a nice active shield volcano;
before we worry about the
logistics of getting our trash there,
let's figure out if it's even a
good idea to dump it inside.
If you were one of the first waste collectors
hired to drive up to the vent of a volcano,
you'd quickly start to
question your career choices.
The vent of a volcano is a treacherous
environment full of poisonous gases,
lava splatter, and projectile rocks;
and things only get worse once
you start throwing stuff inside.
In 2002, a group of Ethiopian researchers threw
a 30 kg (66 lb) bag of trash into a volcano,
and the results were explosive.
Lava lakes are unstable, so
if you pierce their surfaces with
something cold, like trash,
you'll trigger a chain reaction of explosions
involving pressurized and acidic steam.
So can you imagine how
big these explosions would be
if you threw an entire nation's trash in there?
Well to put it in perspective,
rockfalls into lava lakes in Hawaii have
sent lava 85 m (280 feet) into the air,
so it'd probably look something like that.
Even if you could safely get
your trash into the volcano,
you'd still have to worry
about all the air pollution
created by burning our waste without filters.
Plus, not all materials will
completely break down in lava,
which means that the polluting
remnants could erupt out
and contaminate the
surrounding landscape;
not ideal if you were hoping to
burn nuclear waste, for example.
Add these environmental
impacts on top of the fact
that shipping all our
trash to these volcanoes
would significantly increase the
carbon footprint of the waste disposal,
and the whole thing looks like a terrible idea.
If we're going to burn our trash,
why not at least do it some place where we
can use the heat released through incineration
to create new sources of energy?
Or, instead, maybe we could just
shoot our garbage out into space?
Surely there can't be any
harmful effects there... right?
Well, that's a topic for another WHAT IF.
No comments:
Post a Comment