Title: What is global warming
1(No Transcript)
2What is global warming?
3How Global Warming Works
4Example 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?
6Difference
- 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.
7Whats the proof that global warming is taking
place?
8Melting ice bergs
The polar ice cap in the arctic may have no more
summer ice by 2012
9Portage Glacier
Photos NOAA Photo Collection and Gary Braasch
WorldViewOfGlobalWarming.org
10Colorado River
June 2002
Dec 2003
11Effects 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
12Effects of Global Warming
Increased Temperature
13 Raging wildfires
14Global warming in the neighborhood
15Effects of Global Warming
Rising Sea Levels
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17Hurricanes
HurricaneKatrina
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19Forests
- Heating causes
- trees to dry and
- become susceptible
- to insects/disease
- Millions of acres of trees are dying
2025-30 of species threatened by climate change
21Polar Bears Drowning
Survival threatened by global warming
22Penguins harmed by human-caused climate change
Icebergs breaking off from climate heating block
access to feeding grounds and breeding places
23Will 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 -
25Why is global warming happening?
26Burning of Fossil Fuels
Pollution from coal, natural gas, and oil
Pollution from coal, natural gas, and oil
Pollution from coal, natural gas, and oil
27Every day humans release 70 million tons of
carbon to the atmosphere - increasing by 3 a year
281000 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
30Global Warming Shifting Gears
31Orphan Shares
- US - 30 of worlds
- Carbon emissions
- Every city, every county,every state must reduce
carbon
32Billions of Metric Tons Carbon
Goal Reductions in CO2 Per Year
2007
33Our 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
34End Coal
- One more new coal fired
- plant with its lifetime
- Emissions of CO2, could be
- the straw that breaks
- the camels back. Jim
- Hansen
35Whats being done now to reduce our emissions?
Solar Power
Wind Power
Fuel-Efficiency
36We can stop global warming!
37What can you do to help solve the problem?
- Talk to your parents
- Cut carbon at home
- 3. Exercise citizenship
38Discuss 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.
40CUT CARBON AT HOME!by 50
41Things 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.
42Be Bulb SmartUse CFLs
Whats the difference?
Compact Fluorescent
Incandescent
- 1,430 lbs. CO2 pollution avoided
- 30 saved
43Simple 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.
-
.
44DONT DRIVE TO SCHOOL OR ACTIVITIES
Each average car emits one pound of CO2 each mile!
45 Bike or walk instead!
46Dont Fly
Airplanes are a huge source of emissions. They
put pollutants up in the troposphere.
Wait for the solar airplanes!
47Think 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?
48Eat 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!
49Buy from Local Farmers
- There are lots of ways. . . .
- Farmers markets
- Local food store
- Join a CSA
- Eat all organic!
-
50Plant 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!
51A Victory Garden at the White House?
- Eleanor Roosevelt had one!
Made sense then . . . makes sense again!
52Eliminate 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!
53Exercise Citizenshipfor Climate Defense
- The Victory Speakers of World War II
54Step It Up
- Rallies across the country
- Arrest carbon growth
- by 2010
- Cut emissions 80 by 2020
55Make a statement
30 years ago, ice 11 feet thick - North Pole
56Cascade Middle School Makes a Statement - 2008
57Invite your leadersto a National Climate
Teach-InFeb. 5, 2009
58A class project