volcanic gases escape from the magma they percolate through the Earth’s crust
they percolate through the Earth’s crust
they percolate through the Earth’s crust and into the atmosphere
professional geologist Charles Watson
professional geologist Charles Watson investigates the risks at Horseshoe Lake
investigates the risks at Horseshoe Lake
investigates the risks at Horseshoe Lake close to mammoths main resort there’s
close to mammoths main resort there’s
close to mammoths main resort there’s this quiet silent killer that’s lurking
this quiet silent killer that’s lurking
this quiet silent killer that’s lurking about in the trees along the lakes edge
about in the trees along the lakes edge
about in the trees along the lakes edge in the early 1990s trees began to die in
in the early 1990s trees began to die in
in the early 1990s trees began to die in the area north of the lake the cause
the area north of the lake the cause
the area north of the lake the cause high concentrations of carbon dioxide
scientists have discovered that around a
scientists have discovered that around a hundred tons of the gas escapes around
hundred tons of the gas escapes around
hundred tons of the gas escapes around Horseshoe Lake each day raising the
Horseshoe Lake each day raising the
Horseshoe Lake each day raising the level of carbon dioxide in the soil up
level of carbon dioxide in the soil up
level of carbon dioxide in the soil up to 95 times normal levels a simple test
to 95 times normal levels a simple test
to 95 times normal levels a simple test of the lakeside shows what this means in
of the lakeside shows what this means in
of the lakeside shows what this means in practice carbon dioxide is heavier than
practice carbon dioxide is heavier than
practice carbon dioxide is heavier than air so what we’ve done is we’ve dug a
air so what we’ve done is we’ve dug a
air so what we’ve done is we’ve dug a hole and the carbon dioxide is gonna
hole and the carbon dioxide is gonna
hole and the carbon dioxide is gonna fill that up and displace the oxygen out
fill that up and displace the oxygen out
fill that up and displace the oxygen out and extinguish this butane lighter fire
and extinguish this butane lighter fire
and extinguish this butane lighter fire needs oxygen to burn starve to this the
needs oxygen to burn starve to this the
needs oxygen to burn starve to this the flame dies you won’t even realize
high concentrations of carbon dioxide
high concentrations of carbon dioxide can kill a butane flame in seconds and
can kill a butane flame in seconds and
can kill a butane flame in seconds and it can have a deadly effect on humans
it can have a deadly effect on humans
it can have a deadly effect on humans the usual concentration of carbon
the usual concentration of carbon
the usual concentration of carbon dioxide in air is only point zero three
dioxide in air is only point zero three
dioxide in air is only point zero three five percent at a concentration level of
five percent at a concentration level of
five percent at a concentration level of around one percent it causes dizziness
around one percent it causes dizziness
around one percent it causes dizziness headaches and hallucinations above 17
headaches and hallucinations above 17
headaches and hallucinations above 17 percent unconsciousness and death
percent unconsciousness and death
percent unconsciousness and death happens in a matter of seconds
at Mammoth Lakes wind usually disperses
at Mammoth Lakes wind usually disperses the carbon dioxide safely but in 2006
the carbon dioxide safely but in 2006
the carbon dioxide safely but in 2006 investigators confirmed that a lethally
investigators confirmed that a lethally
investigators confirmed that a lethally high concentration of the gas killed
high concentration of the gas killed
high concentration of the gas killed three ski patrollers who fell into a
three ski patrollers who fell into a
three ski patrollers who fell into a snow cave on Mammoth Mountain and there
snow cave on Mammoth Mountain and there
snow cave on Mammoth Mountain and there was no volcanic eruption
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