Climate change refers to significant and long-lasting changes in weather patterns over decades or longer. It may involve changes in temperature, rainfall, snow, or wind patterns across the globe or a specific region. Climate change affects seasonal weather averages as well as the variability and frequency of extreme weather events. If climate change causes temperatures to rise globally, it could melt polar ice caps and raise sea levels, endangering low-lying coastal regions and river deltas.

3. It is a significant and lasting change in
the statistical distribution of weather
patterns over periods ranging from
decades to millions of years.
It may be a change in average weather
conditions or the distribution of events
around the average .
 it maybe limited to a specific region or
may occur across the whole earth.
 it affects more than just a change in
the weather , it refers to seasonal

5. 

6. • If the heat from the The effect of a Rise in Sea
Level on the Nile Delta
sun cannot escape
through the earth’s
atmosphere then the
ice at the north and
south poles could
melt.
• This could have a
huge effect on the
low lying areas of
the world.

7. • We could see a change in the boundaries
between grassland, forest and shrub lands.
• This change in vegetation zones could cause
famine in arid areas such as Africa that depends
on a certain type of crop.
• It could also cause mass movement of people
away from arid regions. And this could cause
huge over-crowding in towns and cities.

8. The Malaria Carrying Mosquito • The range of pest could
change if the vegetation
changed.. This could bring
about an increase in disease
levels.
• Scientist believe that if the
temperature increased by
3-5 degrees Celsius, the
number of people potentially
exposed to malaria(caught
from mosquito) could
increase from 45%-60% of
the worlds population.

9. It could be affected by a change in temperature.
It has been predicted that an increase in temperature
would affect species composition.
Scientist believed that up to two thirds of world’s forest
would undergo major changes. They also believed that
desserts would become hotter, and desertification would
extend and become harder to reverse.