GLOBAL
WARMING
Dr. Suharyanto, MS., MSc.
Fakulty of Biology
Gadjah Mada University, Yogyakarta, Indonesia.
Background
Earth is our residence. It is
our responsibility to love and
take care of it from ruining.
Definition
Global warming is the increase
in the average measured
temperature of the Earth's near-
surface air and oceans and its
projected continuation.
CONDITION OF EARTH NOW:
1. World forest more and more hairless
because it is always cut away.
2. Besides drinking water in bottle, it also has
been sold air in the bottle.
3. Various animal types can be extinct.
if we still cool,
CONDITION OF EARTH in 2500:
1. Animal and trees will be made of machine or
robot.
2. When people go out from their house they must
use special anti sunshine clothes and oxygen tube.
3. Man will move to other planet, possibly to destroy
it again.
How We Contribute to Global Warming?
Burning natural gas, coal and oil
including fuel, raises the level of CO₂ in the atmosphere.
Some farming practices and land usage
increase methane and nitrous oxide’s level.
Many factories produce poisonous gases
industrial produce gases that don’t occur naturally, yet
contribute to the enhanced global warming.
Deforestation contributes to global warming
Trees use CO₂ and give off O₂.
Population growth
Many people use fossil fuel, for heating, transportation
and manufacturing.
World population versus food production
Decrease of agricultural areas
► Expansion of towns/roads
► Soil degradation
Billions
► Erosion
1 hectare is lost every 6.67 seconds
Agriculture for non-food uses
► bio-fuels
► fibers
► wood
About 5.5 billion people in 2000 and about
11 billion people predicted by 2050.
Increase of crop productivity and quality is
necessary
World cultivated area versus world
clock
27/8/07 date | pag. 9
5 Deadliest Effects of Global Warming
1. Spread of disease
Insect bringing plague and disease
2. Warmer waters and more
hurricanes
Because the temperature of oceans rises
3. Increase the droughts
and heat waves
Earth will suffer serious droughts and
heat waves
4. Economic
consequences
Damage and diseases cost more money
5. Polar ice caps melting
The sea levels rises, temperature rises,
and snowball with the ice caps gone
Top 10 Things to Reduce Global Warming
1. Reduce, Reuse, Recycle
Using recycle, reusable, and minimal packaging products.
2. Use Less Heat and Air Conditioning
Turn down the heat at night or during the day, and keep
temperatures moderate at all times.
3. Change a Light Bulb
Replace regular light bulbs with CFL bulbs.
4. Drive Less and Drive Smart
Saving gasoline, reduce emission.
5. Buy Energy-Efficient Products
Avoid excess packaging products and can't be recycled.
6. Use Less Hot Water
Set your water heater at 120 degrees to save energy.
7. Use the "Off" Switch
Using electricity as much as you need.
8. Plant a Tree
Tree absorb carbon dioxide and give off oxygen.
9. Get a Report Card
Many utility companies offer rebate programs to help pay
for the cost of energy-efficient upgrades.
10. Encourage Others to Conserve
Share information about global warming to each other.
Conclusion
Now, earth is more and more
dangerous. We are some of
the causes of it and there are
more diseases. By easy things
we can reduce global warming.
LET’S SAVE OUR
EARTH!
THANK YOU