MODIS image of the October 2002 Etna eruption.
Scientists are interested in volcanic clouds because of the
close relationship of the atmosphere and volcanoes. In the current
prevailing earth models, we think that earth's atmosphere and its
ocean are the products of eons of degassing through volcanism.
Yet, although this may be true, degassing of the deep earth
introduces many substances that are rare in the hydrosphere.
Explosive eruptions can cause grave hazards to life and health of
living creatures. It is thus important to understand the process
of volcano/atmosphere interactions both from the perspective of
science and from the perspective of a living creature on earth.
Volcanoes are sources of natural
can be affected by volcanic eruptions and gases.
Volcanoes provide insight
into the inner earth.
Volcanoes may have controlled
human genetic evolution.
Volcanic eruptions can be used as a tool to study the
Public issues --
why everyone should be
aware of volcanic clouds
hazards are a prime public safety issue for volcanic clouds.
emit gases that
affect the health of humans and animals.
forecasts are important to public health as well.