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Smoke
One of the main
potentially global or world wide effects of
bushfires is smoke. In Australia smoke from fires
usually does not go into other countries. Although
sometimes smoke from fires in Northern Australia
may go north into Indonesia. But also fires that
happen in Indonesia smoke can blow into
Australia.
Smoke in the
atmosphere can change the way sun light gets
through. This sometimes can reflect light and
reduce the temperature on the ground for a while.
Sometimes this can also affect how much light is
available for plants to use (photosynthesis)
Carbon
dioxide
Another possible
global effect of bushfires is production of extra
carbon dioxide. More fires would lead to an
increase in carbon dioxide in the atmosphere. This
may increase the green house effect that can
increase the average global temperature.
Overall global
effects on weather
The global
effects of a bushfire really depends on how big the
fires are and how often they occur. The effects on
other countries are usually indirect and can affect
different countries in different ways. For example
for places rain seasons may be increase or decrease
because of a change in temperature in another part
of the world. A bit like a domino effect. ( Where
one domino knocks into another, in this case one
weather pattern bumps into another)
Reference:
Fire's
role in global warming studied - CNN
Global
Fire Monitoring -NASA Earth Observatory
Aerosol
Impacts on the Land-Atmosphere
Interactions
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