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Sun

Climate change and natural disasters

Climate is the average weather of a place over a long period of
time. It is determined by rainfall, sunshine, temperature, wind, and
humidity. The earth’s climate is dynamic—it is always changing
due to natural factors like volcanic eruptions and ocean currents,
as well as human activities.

Heat from the sun
reaches the earth.

Atmosphere

Some rays hit the earth
and bounce back into the
atmosphere.

Some rays pass through
the atmosphere.

Is the climate
changing?

Some of Some of the heat Over the past
the heat is is trapped by 150–200 years, it
absorbed by greenhouse gases has been observed
the earth. in the atmosphere, that climate is
warming the earth’s changing at a faster
surface. pace. Over the
twentieth century,
the average global
surface temperature
increased by 0.6
degree Celsius. This
may appear to be a
slight increase, but
it has an impact on
the world’s climate,
leading to the
phenomenon called
climate change.

TICKER The period between 1990 to 2000 has been the warmest decade since 1860.
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