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Current methods of predicting an
volcanic explosion include checking
activity, changes in ground height, and carbon dioxide and sulphur dioxide emissions. NASA said the new method of monitoring changes in the colour of
from space could help in foretelling eruptions. The science behind this is
straightforward. As
moves upwards through Earth's crust, it releases carbon dioxide. Trees absorb this and their leaves become greener and more
. The LiveScience website said: "These
can help to protect communities against the worst effects of volcanic
, including lava flows, ejected
, ashfalls, mudslides, and
gas clouds."