Nuclear explosions trigger a horrendous chain reaction. The
instantaneous outcome is the thermal and blast effect annihilating everything
in and around the area. The mushrooming cloud due to the explosion rises high
into the stratosphere, spreading out vast quantities of soot and radioactive
debris. Some of the debris fall back to the ground as rain out. The soot and
other particles suspended in the atmosphere would block sunlight and lower the
global temperatures steeply to subzero levels, ushering in wintery conditions
over the planet. This sequence of events has been termed as "Nuclear
Winter". As a consequence, photosynthesis would stop leading to the
destruction of all green plants.
Subsequently oxygen regeneration would cease and
carbondioxide would accumulate. Earth's radiation balance and heat budget would
get altered leading to drastic changes in the global circulation pattern. the
seasonal monsoons and tropiacl rains may disappear. the duration and extent of
the nuclear winter scenario would depend on the location, season and intensity
of the explosion.
courtesy: thehindu.com
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