Global warming refers to the increase in the Earth's average surface temperature due to greenhouse gas emissions. The planet's average surface temperature has risen about 2 degrees Fahrenheit since the late 19th century, and the oceans have warmed by 0.3 degrees over this period as well. Other evidence of global warming includes shrinking ice sheets, rising sea levels, and declining Arctic sea ice. The main causes of global warming are greenhouse gas emissions from human activities like burning fossil fuels, population growth, and deforestation. If unchecked, global warming will lead to more extreme weather, rising sea levels, longer growing seasons and changes in precipitation patterns. Solutions proposed to address global warming include reducing greenhouse gas emissions, stopping deforestation, and count

1. By:Nouman Alam
Department: Center for disaster
preparedness & management
university of peshawar

2. Presentation Contents
• Global Warming
• Evidences
• Causes
• Effects
• Solutions

3. What is Global Warming?

4. Global Warming
• Wallace Broecker of
Columbia University’s
Lamont-Doherty
Geological Observatory:
“Climatic Change: Are we
on the brink of a pronounce
Global Warming?”
• Definition:
The increase in the Earth’s
average surface temperature.

5. Is Global Warming really happening?

6. Evidences
• Global temperature
rise
The planet's average
surface temperature
has risen about 2.0
degrees Fahrenheit
(1.1 degrees Celsius)
since the late 19th
century

7. Evidences
• Warming oceans
The oceans have
absorbed much of this
increased heat, with the
top 700 meters (about
2,300 feet) of ocean
showing warming of
0.302 degrees
Fahrenheit since 1969

9. Evidences
• Shrinking ice
sheets
The Greenland and
Antarctic ice sheets
have decreased in
mass.

10. Evidences

12. Evidences
• Sea level rise
Global sea level
rose about 8
inches in the last
century. The rate
in the last two
decades, however,
is nearly double
that of the last
century.

14. Evidences
• Declining Arctic sea
ice
Both the extent and
thickness of Arctic sea ice
has declined rapidly over
the last several decades

16. What causes Global Warming?

17. Causes
• Greenhouse
Effect
Gases that
contribute to the
greenhouse effect
include:

18. Causes
• Population Growth
More people means
more demand for oil,
gas, coal and other
fuels and spew enough
carbon dioxide (CO2)
into the atmosphere to
trap warm air inside
like a greenhouse.

19. Causes
• Deforestation
Clearing of vegetation
for farming, urban and
infrastructure
development and for
other purposes.

20. What are the future consequences of
Global Warming?

21. Effects
• Temperatures will
continue to rise
• More droughts and
heat waves
• Hurricanes will
become stronger and
more intense
• Arctic likely to
become ice-free

22. Effects
• Frost-free season
(and growing
season) will
lengthen
• Changes in
precipitation
patterns
• Sea level will rise 1-
4 feet by 2100

23. What we can do about it?

24. Solutions
• Reduce heat-trapping Emissions

25. Solutions
• Stop Deforestation
A comprehensive long-term solution to global warming.

26. Solutions
• Fight Misinformation
barrage of misinformation misleads and confuses the public about
the growing impacts of global warming

27. The End
Thanks for you patience…