Paragraph 2
Current
of predicting volcanic
include checking
activity, changes in ground height, and carbon dioxide emissions. NASA said its new method of monitoring the colour of
from space could give better
. The science behind this is easy to understand. As
moves upwards through Earth's
, it releases carbon dioxide. Trees absorb this and their leaves become
. The LiveScience website said: "These
can help to protect communities against the worst effects of volcanic blasts, including lava flows...and
gas clouds."
