do now: what do you already know about global warming? objective: understand causes, effects and...

• Do Now: What do you already know about global warming?

Objective: Understand Causes, Effects and Solutions of Global WarmingKey Words: concentration, biodiversity, fossil fuels, deforestation, industrialization

Causes Effects Solutions

How Are Temperature and Carbon Dioxide Related?

• Describe the graphs below. Look for patterns.

•The graph shows

•Both graphs have in common

•How are global temperature and carbon dioxide concentration related?

how carbon dioxide and temperature have changed over time.

They show the same pattern of increase and decrease

CO2 trapped the heat and causes the increase of global temperature


2. How did CO2 concentration change in the last 150 years?

3. How did global temperature change in the last 150 years?

4. What important even occurred around 1870 in Western Europe?

How Are Temperature and Carbon Dioxide Related?

Overall, temperature increased 0.8 C since from 1860 to 2000

Industrial revolution

CO2 concentration increased 100 ppm over the last 150 years


Global Warming or Greenhouse Effect describe the increase in the average temperature of the biosphere


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.


Increase of CO2 levels in the atmosphere

Increase of global temperature

Human Activities and Global Warming

Agriculture

DeforestationBurning the forest

Industrial revolution

Burning Fossil Fuels (oil, coal, natural gas) inpower plants, factories, cars

•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


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



Loss of Biodiversity

Migration of species

Endangered & extinction of species

Climate change

Melt of the ice caps

Global temperature is rising

DesertificationDroughtsHurricanesTornados




Using the information above, make a flowing chart to show the effects of global warming

Sea level rises

Flooding coastal areas



Droughts

Loss of

Biodiversity

Melt of the ice caps Floods some coastal areasSea level rises

Climate

change

Desertification

HurricanesTornados

Migration of species

Endangered or extinction of species


Do Now: What did you learned about Global Warming?


What is Global Warming?


the increase in the average temperature of the Earth




Increase CO2 concentration in the air

Agriculture: •Deforestation•Burning the forest

Industrialization:•Burning fossil fuels (oil, natural gas, coal) in power plants, factories, cars, etc.

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 DeforestationReducing 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 fuelsb) Use of clean alternative energy sources i.e. solar energyc) Increase vehicle fuel efficiency, support public transportation and car pooling.

2. Reforestation: photosynthesis removes CO2 from the atmosphere


Global Warming Solutions

Using the information above, make a flowing chart to show effective solutions to stop global warming

1. Reduce the CO2 emissions to atmosphere a) Reduce the use of fossil fuelsb) Use of clean alternative energy sources i.e. solar energyc) 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

Reduce the CO2 emissions to atmosphere

a)Reduce the use of fossil fuels

b)Use of clean alternative energy

c)Support public transportation, car pooling

Reforestation

Decrease of CO2 levels in the atmosphere

Decrease of global temperature


Global Warming Summary


What is Global Warming?


the increase in the average temperature of the Earth




Increase CO2 concentration in the air

Agriculture: •Deforestation•Burning the forest

Industrialization: Burning fossil fuels (oil, natural gas, coal)in power plants, factories, cars, etc.

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

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

Objective: Understand Causes, Effects and Solutions of Global Warming?Key Words:

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

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.


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.


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.

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.

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.


Land plants, aquatic plants, and algae

5) Based on the figure shown, name one group of organisms that is able to remove CO2 from the atmosphere.


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.

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.


do now: what do you already know about global warming? objective: understand causes, effects and...

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