My powerpoint presentation about climate change,

1. Climate
C h a n g e

3. .
Also called global warming, refers
to the rise in average surface
temperatures on Earth. An
overwhelming scientific consensus
maintains that climate change is
due primarily to the human use of
fossil fuels, which releases carbon
dioxide and other greenhouse
gases into the air.
•“Global warming is a term used for
the observed century-scale rise in
the average temperature of the
Earth's climate system and its
related effects. Scientists are more
than 95% certain that most of global
warming is caused by increasing
concentrations of greenhouse
gases and other human caused
(anthropogenic) activities.”

6. Some Major Causes of Climate Change
● : When fossil fuels are burned they release carbon dioxide
into the atmosphere which contributes to global warming. Using fossil fuels to
generate energy also releases pollutants into the atmosphere - such as sulphur
dioxide.
● : is the permanent destruction of forests in order to make the
land available for other uses. Global warming,weather pattern,water
cycle,ocean acidification and quality of life can be the effect of continuous
deforestation.
● : The coal industry uses enough fresh water to meet
the basic needs of one billion people. Yet we are already at risk of a global water
supply crisis. Adding further strain on our water supplies, pollution from coal
mines and coal plants contaminates groundwater and waterways.
● : Fertilizers consists of substances and chemicals like
methane, carbon dioxide, ammonia, and nitrogen, the emission of which has
contributed to a great extent in the quantity of greenhouse gases present in the
environment. This in turn is leading to global warming and weather changes.

8. Global climate change has already had observable effects on the
environment. Glaciers have shrunk, ice on rivers and lakes is
breaking up earlier, plant and animal ranges have shifted and trees are
flowering sooner.
Effects that scientists had predicted in the past would result from
global climate change are now occurring: loss of sea ice, accelerated
sea level rise and longer, more intense heat wave

9. Higher Temperatures
and
More Droughts

10. Shrinking Sea ice
and
Melting Glaciers