Global warming is the term used to describe a gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth’s climate. There is great debate among many people, and sometimes in the news, on whether global warming is real (some call it a hoax). But climate scientists looking at the data and facts agree the planet is warming. While many view the effects of global warming to be more substantial and more rapidly occurring than others do, the scientific consensus on climatic changes related to global warming is that the average temperature of the Earth has risen between 0.4 and 0.8 °C over the past 100 years. The increased volumes of carbon dioxide and other greenhouse gases released by the burning of fossil fuels, land clearing, agriculture, and other human activities, are believed to be the primary sources of the global warming that has occurred over the past 50 years. Scientists from the Intergovernmental Panel on Climate carrying out global warming research have recently predicted that average global temperatures could increase between 1.4 and 5.8 °C by the year 2100. Changes resulting from global warming may include rising sea levels due to the melting of the polar ice caps, as well as an increase in occurrence and severity of storms and other severe weather events.

1. Global warming and
Greenhouse effect.

3. It is a major concern- it warms the globe
Firstly,

4. Any mention of it in the NEWS?

5. IT IS ALL OVER THE NEWS!

7. What the heck is Global Warming?
Okay… But,

8. IT IS…
Global warming is the term used to describe a gradual increase in the average temperature of the
Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth’s
climate.

9. Global Temperature
Anomaly
Global mean surface
temperature change from 1880
to 2014, relative to the 1951–
1980 mean. The black line is the
annual mean and the red line is
the 5-year running mean. The
purple bars show uncertainty
estimates.

10. SO…
There is great debate among many people, and sometimes in the news, on whether global warming
is real (some call it a hoax). But climate scientists looking at the data and facts agree the planet is
warming.
While many view the effects of global warming to be more substantial and more rapidly occurring
than others do, the scientific consensus on climatic changes related to global warming is that the
average temperature of the Earth has risen between 0.4 and 0.8 °C over the past 100 years. The
increased volumes of carbon dioxide and other greenhouse gases released by the burning of fossil
fuels, land clearing, agriculture, and other human activities, are believed to be the primary sources
of the global warming that has occurred over the past 50 years. Scientists from the
Intergovernmental Panel on Climate carrying out global warming research have recently predicted
that average global temperatures could increase between 1.4 and 5.8 °C by the year 2100. Changes
resulting from global warming may include rising sea levels due to the melting of the polar ice caps,
as well as an increase in occurrence and severity of storms and other severe weather events.

12. Global Gaseous Emissions
Fossil fuel related carbon
dioxide (CO2) emissions
compared to five of the IPCC's
"SRES" emissions scenarios,
published in 2000. The dips are
related to global recessions.

14. Consequences

15. Melting of Polar Ice Caps; The Arctic Ocean will be ice-free by 2050 (NASA,2013)

16. Heat Waves, Wildfires and Droughts will be more frequent

17. Increase in chances of catastrophic weather like Hurricanes

18. Global Sea Levels will rise above 20ft, resulting in devastation of coastal areas Worldwide

19. Greenhouse Effect

20. How it looks for a Greenhouse…

22. How it looks for Us…

24. IN BRIEF
The exchange of incoming and outgoing radiation that warms the
Earth is often referred to as the greenhouse effect because a
greenhouse works in much the same way.
Incoming UV radiation easily passes through the glass walls of a
greenhouse and is absorbed by the plants and hard surfaces inside.
Weaker IR radiation, however, has difficulty passing through the glass
walls and is trapped inside, thus warming the greenhouse. This effect
lets tropical plants thrive inside a greenhouse, even during a cold
winter.
A similar phenomenon takes place in a car parked outside on a cold,
sunny day. Incoming solar radiation warms the car's interior, but
outgoing thermal radiation is trapped inside the car's
closed windows.

26. Energy in… Energy out
There's a delicate balancing act occurring every day all across the Earth, involving the radiation the
planet receives from space and the radiation that's reflected back out to space.
Earth is constantly bombarded with enormous amounts of radiation, primarily from the sun. This
solar radiation strikes the Earth's atmosphere in the form of visible light, plus ultraviolet (UV),
infrared (IR) and other types of radiation that are invisible to the human eye.
UV radiation has a shorter wavelength and a higher energy level than visible light, while IR radiation
has a longer wavelength and a weaker energy level. About 30 percent of the radiation striking
Earth's atmosphere is immediately reflected back out to space by clouds, ice, snow, sand and other
reflective surfaces, according to NASA. The remaining 70 percent of incoming solar radiation is
absorbed by the oceans, the land and the atmosphere. As they heat up, the oceans, land and
atmosphere release heat in the form of IR thermal radiation, which passes out of the atmosphere
and into space.
It's this equilibrium of incoming and outgoing radiation that makes the Earth habitable, with an
average temperature of about 59 degrees Fahrenheit (15 degrees Celsius), according to NASA.
Without this atmospheric equilibrium, Earth would be as cold and lifeless as its moon, or as blazing
hot as Venus. The moon, which has almost no atmosphere, is about minus 243 F (minus 153 C) on
its dark side. Venus, on the other hand, has a very dense atmosphere that traps solar radiation; the
average temperature on Venus is about 864 F (462 C).

28. Home
Waste

29. Some Causes

30. Deforestation and Agriculture

31. CFCs - Chlorofluorocarbons
Cl
Cl
F F

32. Burning of Fossil Fuels like Gasoline and Oil

33. Burning of Wood and Coal

34. Population Growth

35. Are we all going to die?
So…
Like right NOW!

36. Uh… well…
Not yet

38. United Nations Climate
Change Conference
2009 in Copenhagen

40. Paris Climate Change Conference - November 2015

41. But honestly there wont be any change unless
we change ourselves…