golbal wraming occurs becoz of depletion of ozone layer its 
a protecting layer for earth from sun if the ozone layer 
gets depleted the sun rays will directly fall on earth the 
depletion of ozone layer occurs mainly becoz of high 
carbondioxide levels and the pollution

Global warming is increase in the average temperature of
earth's surface which can cause Antarctic and Arctic regions
to melt thus increasing the water level of sea.Due to
increase in sea level the population situated on the coastal
areas might fall a victim to Tsunami.As 70% of land on earth
is occupied by water,the percentage may increase if the
temperature is not controlled.This can be avoided by
controlling the pollution which has a major contribution in
rising temperature.

Global warming is the average increase in the temperature 
of air near earth's surface.It is mainly caused due to 
increase in the amont of carbondioxide in the atmosphere 
causing the depletion of ozone layer.
It is a major cause of concern as it can lead to the 
distinction of entire human species.It can lead to coastal 
flooding,rise in the earth's temp.If it is not controlled 
now it can turn into a much hotter place and it will be 
impossible to survive.It is mainly caused due to the 
pollution.

Global warming refers to an average increase in the Earth's
temperature, which in turn causes changes in climate. A
warmer Earth may lead to changes in rainfall patterns, a
rise in sea level, and a wide range of impacts on plants,
wildlife, and humans. When scientists talk about the issue
of climate change, their concern is about global warming
caused by human activities.