Download Global warming

Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
• Do Now: What do you already know about global warming?
Causes
Effects
Solutions
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
How Are Temperature and Carbon Dioxide Related?
• Describe the graphs below. Look for patterns.
• The graph shows
how carbon dioxide and temperature have changed over time.
• Both graphs have in common
They show the same pattern of increase and decrease
• How are global temperature and carbon dioxide concentration related?
CO2 trapped the heat and causes the increase of global temperature
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
How Are Temperature and Carbon Dioxide Related?
2. How did CO2 concentration change in the last 150 years?
CO2 concentration increased 100 ppm over the last 150 years
3. How did global temperature change in the last 150 years?
Overall, temperature increased 0.8 C since from 1860 to 2000
4. What important even occurred around 1870 in Western Europe?
Industrial revolution
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
Global Warming or Greenhouse Effect describe the increase in the average
temperature of the biosphere
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
Human Activities and Global Warming
Humans had first affected global warming some eight thousand years ago with the
start of agriculture. Due to the clearing of the forests for agriculture, the amount of
carbon dioxide in the atmosphere increased drastically.
Since the industrial revolution, humankind also contributes to the increase of carbon
dioxide by the burning of fossil fuels (coal, oil, gas, petrol) to obtain energy. For
instance, carbon dioxide is released by power plants, factories, and cars.
•List at least 2 human activities that increase the amount of CO2 in the atmosphere.
• Agriculture: deforestation, burning the forest
• Industrialization: Burning fossil fuels (oil, natural gas, coal) in power plants,
factories, cars, etc.
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
Human Activities and Global Warming
•Agriculture: deforestation, burning the forest
•Industrialization: Burning fossil fuels (oil, natural gas, coal) in power plants,
factories, cars, etc.
Using the information above, make a flowing chart to show how human actions
contribute to global warming
Agriculture
Deforestation
Burning the forest
Industrial revolution
Burning Fossil Fuels
(oil, coal, natural gas) in
power plants, factories, cars
Increase of CO2 levels
in the atmosphere
Increase of global
temperature
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
The Effects of Global Warming
Increasing global temperatures is melting the ice cap and rising the sea levels,
which will cause the flooding of coastal areas. Also global warming is changing the
climate: it has changed the amount and patterns of precipitation, and increased the
frequency, duration, and intensity of other extreme weather events, such as floods,
droughts, heat waves, hurricanes and tornadoes.
Other effects of global warming include loss of biodiversity, endanger and extinction
of species, and migration of species. For instance, diseases like malaria are
returning into areas where they have been extinguished earlier.
5. List at least 4 effects of global warming.
•Melt of the ice caps
•Flooding coastal areas
•Sea level rises
•Climate change
•Desertification
•Droughts
•Hurricanes
•Tornados
•Loss of Biodiversity
•Migration of species
•Endangered or extinction of species
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
The Effects of Global Warming
•Melt of the ice caps
•Flooding coastal areas
•Sea level rises
•Loss of Biodiversity
•Migration of species
•Endangered or extinction of species
•Climate change
•Desertification
•Droughts
•Hurricanes
•Tornados
Using the information above, make a flowing chart to show the effects of global warming
Sea level rises
Melt of the
ice caps
Global
temperature
is rising
Climate
change
Flooding
coastal areas
Desertification
Droughts
Hurricanes
Tornados
Migration of
species
Endangered &
extinction of
species
Loss of
Biodiversity
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
The Effects of Global Warming
Melt of the ice caps
Sea level rises
Floods some coastal areas
Migration of species
Climate
Desertification
Loss
of
Biodiversity
Droughts
change
Tornados
Hurricanes
Endangered or extinction of species
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
Do Now: What did you learned about Global Warming?
What is Global Warming? the increase in the average temperature of the Earth
Causes
Effects
Increase CO2
concentration in the air
•Melt of the ice caps
•Flooding coastal areas
•Sea level rises
Agriculture:
•Deforestation
•Burning the forest
Industrialization:
•Burning fossil fuels
(oil, natural gas, coal) in
power plants, factories,
cars, etc.
•Climate change
•Desertification
•Droughts
•Hurricanes
•Tornados
•Loss of Biodiversity
•Migration of species
•Endangered
or extinction of species
Solutions
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
Global Warming Solutions
We have the practical solutions at hand to dramatically reduce our carbon emissions and slow the pace of
global warming.
•Reduce CO2 emissions.
We must significantly reduce the amount of carbon dioxide emissions we are putting into the atmosphere.
a) Expand the use of renewable energy and transform our energy system to one that is cleaner and less
dependent on coal and other fossil fuels.
b) Increase vehicle fuel efficiency, support public transportation and car pooling.
c) Place limits on the amount of carbon that polluters are allowed to emit.
d) Build a clean energy economy by investing in efficient energy technologies, such as solar energy.
•Stop Deforestation
Reducing tropical deforestation can significantly lower global warming emissions and — together with
efforts to reduce emissions from fossil fuels — plays an integral role in a comprehensive long-term solution
to global warming.
6. List at least 2 actions to effectively stop Global Warming?
1. Reduce the CO2 emissions to atmosphere
a) Reduce the use of fossil fuels
b) Use of clean alternative energy sources i.e. solar energy
c) Increase vehicle fuel efficiency, support public transportation and car pooling.
2. Reforestation: photosynthesis removes CO2 from the atmosphere
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
Global Warming Solutions
1. Reduce the CO2 emissions to atmosphere
a) Reduce the use of fossil fuels
b) Use of clean alternative energy sources i.e. solar energy
c) Increase vehicle fuel efficiency, support public transportation and car pooling.
d) Limit the amount of carbon that polluters are allowed to emit
2. Reforestation: photosynthesis removes CO2 from the atmosphere
Using the information above, make a flowing chart to show effective solutions to stop
global warming
Reduce the CO2 emissions to atmosphere
Reforestation
a)Reduce the use of fossil fuels
b)Use of clean alternative energy
c)Support public transportation, car pooling
Decrease of CO2 levels
in the atmosphere
Decrease of global
temperature
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
Global Warming Summary
What is Global Warming?
the increase in the average temperature of the Earth
Causes
Effects
Increase CO2
•Melt of the ice caps
concentration in the air •Flooding coastal areas
•Sea level rises
Agriculture:
•Deforestation
•Climate change
•Burning the forest
•Desertification
Industrialization:
Burning fossil fuels
(oil, natural gas, coal)
in power plants,
factories, cars, etc.
•Droughts
•Hurricanes
•Tornados
•Loss of Biodiversity
•Migration of species
•Endangered or
extinction of species
Solutions
1. Reduce the CO2 emissions
• Reduce the use of fossil fuels
• Use of clean alternative
energy: solar energy
• Support public transportation
and car pooling.
2. Reforestation
Objective: Understand Causes, Effects and Solutions of Global Warming?
Key Words:
1) Some scientists are urging that immediate action be taken to stop activities that contribute to
global warming.
Discuss the effects of global warming on the environment and describe some human activities
that may contribute to it. Your answer must include:
(1) an explanation of what is meant by the term "global warming"
(2) one human activity that is thought to be a major contributor to global warming and an
explanation of how it may contribute to the problem
(3) one negative effect of global warming if it continues for many years
1) Global warming is the rise in Earth’s average temperature over time.
2) One human activity that contributes to global warming is:
• burning fossil fuels in power plants, factories and cars.
• deforestation
3) One negative effect of global warming is:
• Melting of polar ice caps will cause major flooding
• Climate change will cause desertification, droughts, hurricanes, and tornados.
• Global warming will cause some species will become endangered or extinct
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
2) State one environmental impact of reduced funding for public transportation (trains,
city buses, school buses, etc.) on future generations. Explain your answer.
Reduced funding for public transportation will increase the amount of cars on the roads,
therefore, CO2 emissions to the air will increase,
then, Earth’s average temperature will increase.
In conclusion, it will contribute to Global Warming.
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
3. To reduce the amount of carbon dioxide in the atmosphere, it has been suggested that
we take the following two actions:
a) Increase the number of trees through reforestation, OR
b) Protect animals so that their numbers increase.
Using one or more complete sentences:
(a) For each statement, identify whether or not the action will contribute to reducing
the CO2 level of the atmosphere
(b) For each statement, explain why the action will have the effect described in part
(a) on the amount of CO2 in the atmosphere..
(a) Reforestation will reduce atmospheric CO2 because plants take in CO2 from the
atmosphere by photosynthesis.
(b) The increase of animal population will increase atmospheric CO2 because animals produce
CO2 by cell respiration.
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
4. Scientists have discovered a link between deforestation and global warming. Write a
paragraph that explain what is meant by the terms deforestation and global warming, then
describe the connection between the two.
Deforestation is the removal of large numbers of trees from a forested area.
Global warming is the rise in Earth’s average temperature over time.
Deforestation increases global warming because CO2 remains in the air and it is
not removed by photosynthesis.
Trees can use carbon dioxide during photosynthesis to make carbohydrates. The carbohydrates are used to make new
cells and tissues. These tissues last for the life of the tree, keeping the carbon dioxide “stored” for a long time.
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
5) Based on the figure shown, name one group of organisms that is able to remove CO2 from
the atmosphere.
Land plants, aquatic plants, and algae
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization
6) The reading passage suggests that scientists believe there to be a relationship between an
increase in atmospheric CO2 and global warming.
Using one or more complete sentences, state two specific potential negative effects of such a
warming trend on the living environment of Earth. Be sure to specify how each of the effects
you suggest will have a negative effect on the environment.
Two negative effects of global warming are
•Sea level may rise flooding coastal areas and killing many animals, plants, and
humans.
•Climate change: It will become hotter and some organisms will not be able to live in
the increased heat.
•Migration: Some organisms will not be able to live in parts of the world where they
now live due to climate changes or warming.
Objective: Understand Causes, Effects and Solutions of Global Warming
Key Words: concentration, biodiversity, fossil fuels, deforestation, industrialization