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What is global warming

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What is global warming – PowerPoint PPT presentation

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Title: What is global warming


1
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2
What is global warming?
3
How Global Warming Works
4
Example of the Greenhouse Effect
The Suns energy passes through the cars
windshield.
This energy (heat) is trapped inside the car and
cannot pass back through the windshield, causing
the inside of the car to warm up.
5
  • Whats the difference between global warming
    and climate change?

6
Difference
  • GLOBAL WARMING
  • is the increase of the Earths average surface
    temperature due to a build-up of greenhouse gases
    in the atmosphere.
  • CLIMATE CHANGE
  • is a broader term that refers to long-term
    changes in climate, including average temperature
    and precipitation.

7
Whats the proof that global warming is taking
place?
8
Melting ice bergs
The polar ice cap in the arctic may have no more
summer ice by 2012
9
Portage Glacier
  • Alaska

Photos NOAA Photo Collection and Gary Braasch
WorldViewOfGlobalWarming.org
10
Colorado River
  • Arizona

June 2002
Dec 2003
11
Effects of Global Warming
Water Supplies Dry Up - Where will the water come
from?

Glaciers on the Tibetan Plateau in China supply
the Yangtze River, which provides 40 of Chinas
water
12
Effects of Global Warming
Increased Temperature
13
Raging wildfires
14
Global warming in the neighborhood
15
Effects of Global Warming
Rising Sea Levels
16
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17
Hurricanes
HurricaneKatrina
18
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19
Forests
  • Heating causes
  • trees to dry and
  • become susceptible
  • to insects/disease
  • Millions of acres of trees are dying

20
25-30 of species threatened by climate change
21
Polar Bears Drowning
Survival threatened by global warming
22
Penguins harmed by human-caused climate change
Icebergs breaking off from climate heating block
access to feeding grounds and breeding places
23
Will sea turtles survive?
Sea turtles lose nesting habitat from rising sea
levels
24
  • Global warming threatens "not simply the Earth,
    but the fate of all its species, ?including
    humanity," Jim Hansen, Leading Climate Scientist,
    NASA

25
Why is global warming happening?
26
Burning of Fossil Fuels
Pollution from coal, natural gas, and oil
Pollution from coal, natural gas, and oil
Pollution from coal, natural gas, and oil
27
Every day humans release 70 million tons of
carbon to the atmosphere - increasing by 3 a year
28
1000 Years of CO2 and Global Warming
Degree Celsius Increase
Parts Per Million
1800
1000
1200
1400
1600
2000
1000
1200
1400
1600
1800
2000


Year
Year
29
  • THE TIPPING POINT
  • 383 parts per million
  • 350 parts per million to
  • stabilize climate

30
Global Warming Shifting Gears
31
Orphan Shares
  • US - 30 of worlds
  • Carbon emissions
  • Every city, every county,every state must reduce
    carbon

32
Billions of Metric Tons Carbon


Goal Reductions in CO2 Per Year
2007
33
Our Goal
Billions of Metric Tons Carbon

Produce electricity efficiently Use electricity
efficiently Vehicle efficiency Solar and Wind
Power Biofuels Carbon capture and storage

Gigaton Carbon
Reductions in CO2 Per Year
2007
34
End Coal
  • One more new coal fired
  • plant with its lifetime
  • Emissions of CO2, could be
  • the straw that breaks
  • the camels back. Jim
  • Hansen

35
Whats being done now to reduce our emissions?
Solar Power
Wind Power
Fuel-Efficiency
36
We can stop global warming!
37
What can you do to help solve the problem?
  • Talk to your parents
  • Cut carbon at home
  • 3. Exercise citizenship

38
Discuss Global Warming with your Parents
  • Its your Earth
  • Its their job

39
What is your carbon footprint?
The average American produces 20 TONS of carbon
every year!
We can reduce. We must reduce.
40
CUT CARBON AT HOME!by 50
41
Things to do
  • Turn off your computer or the TV
  • when youre not using it.
  • Take shorter showers. Heating water uses energy.
  • Keep rooms cool by closing the blinds,
    shades, or
  • curtains.
  • Turn off the lights when you leave a room.
  • Use compact fluorescent bulbs.

42
Be Bulb SmartUse CFLs
Whats the difference?
Compact Fluorescent
Incandescent
  • 1,430 lbs. CO2 pollution avoided
  • 30 saved

43
Simple Things To Do
  • Dress lightly when its hot
    instead of turning up
  • the air conditioning. Or use a
    fan.
  • Dress warmly when its cold instead of
    turning
  • up the heat.
  • Plant a tree.

.
44
DONT DRIVE TO SCHOOL OR ACTIVITIES
Each average car emits one pound of CO2 each mile!
45
Bike or walk instead!
46
Dont Fly
Airplanes are a huge source of emissions. They
put pollutants up in the troposphere.
Wait for the solar airplanes!
47
Think before you buy!
  • Products from China and far away places have lots
    of embedded carbon
  • Can you find a USA-made, or local product?
  • Can you find something without packaging?
  • Can you buy it at the thrift store?

48
Eat Local Foods!
  • Did you know the average
  • meal travels 1,500 miles
  • to the dinner table?
  • Thats a LOT of carbon!
  • Eating locally not only saves
  • the planet, but it supports local
  • farmers, provides more nutrition,
  • and is FUN for the family!

49
Buy from Local Farmers
  • There are lots of ways. . . .
  • Farmers markets
  • Local food store
  • Join a CSA
  • Eat all organic!

50
Plant a Victory Garden!
  • Did you know the Victory Gardens of WWII
    produced 40 of the domestic food supply? Every
    home had a garden! Schools did too!

51
A Victory Garden at the White House?
  • Eleanor Roosevelt had one!

Made sense then . . . makes sense again!
52
Eliminate Plastic
  • Say NO to
  • plastic grocery bags
  • bottled water
  • plastic cups, dishes and silverware
  • plastic containers (refill in the bulk
  • section of your store)
  • soda pop - save it for a special treat!

53
Exercise Citizenshipfor Climate Defense
  • The Victory Speakers of World War II

54
Step It Up
  • Rallies across the country
  • Arrest carbon growth
  • by 2010
  • Cut emissions 80 by 2020

55
Make a statement
30 years ago, ice 11 feet thick - North Pole
56
Cascade Middle School Makes a Statement - 2008
57
Invite your leadersto a National Climate
Teach-InFeb. 5, 2009
58
A class project
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