GLOBAL WARMING,A MAJOR PROBLEMS OF THE
PRESENT WORLD
The rise of atomspheric temperature is known as the green house effect.Green
house effect is a main problem for the people living in the South Asia.In the
western cold countries vegetables are grown in glasses so that cold air cannot
harm them.To keep the atomsphere warm,systems are kept inside the glass
circled area. Our atomsphere is guarded by a ozone layer which resists the
entrance of ultra violet rays from the sun.But deforestation around the world and
the increasing number of engined vehicles are increasing the amount of carbon-
di-oxide gas around the atomsphere.The heat of the sun is directly entering into
the atomsphere of the earth.So the temperature of the earth is becoming hotter
day by day.So the ice in the polar regions is also melting and if the process
continues for a long time,the layer of water in the oceans will rise and thereby
flood coastal areas and farmlands will go under water.
The alarming news about Bangladesh is that for the rise of the sea level,the lower
southern part of the country may one day go under water.Climatologists predict
that mid-way through the next century,temperatures may have risen by as much
as 4 degree C.This could catastrophically reduce mankind`s ability to grow
food,destroy or severely damage wildlife and wilderness.So deliberate cutting
down of forests must be stopped.Tree plantation programme must be made more
popular.Sources of emiting carbon dioxide and carbon monoxide should be
controlled.