Throughout the ages, Earth has cooled and
warmed itself day after day. Climate changes due to uneven heating of the sun,
and this all makes our seasons; all the cycle goes and repeats itself again
after a year. But starling another factor has emerged and has changed the
climatic condition of our mother earth.
What is Global Warming?
Global warming refers to the average
increase in annual temperature due to excessive burning of fossil fuels and
thus production of greenhouse gases.
How Does Today’s Warming Compare to Past Climate Change?
In
good earlier days, Earth was responsible to change all the temperature changes
but now-a-days all the human activities are responsible for the major changes
on the planet.
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| Melting Himalayan Glacier |
Why Do Scientists Think Current Warming Isn’t Natural?
Scientists
believe so, because earlier it used to be shifting of plates, movement of the
polar material and also the earth was cooling, this all made some changes over
the surface of the earth. Now, the situation is different, very few changes are
happening by own and the major things are happening due to the human activities
which has become a concern.
How Much More Will Earth Warm?
Calculations
done by scientists have found that by the end of 21st century it
will rise up to 6 degrees and it may rise above because earth hasn’t adjusted
itself to, such a change by human endeavor. Burning of gases produces carbon-dioxide
which is the main component for this global warming. Further, nuclear tests and
explosions increases a lot of temperature at one go and expand the radioactive materials
too.
How Will Earth Respond to Warming Temperatures?
The
impact of such an activity doesn’t only mean increase in temperature. It deals
in more ways, it will melt the glaciers, expand coastal areas; shrinking of
rocks will become faster. Change in climatic patterns and thus it is related to
many problems due to only single cause of overall warming i.e. global warming.
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