Global Warming - PowerPoint PPT Presentation

Loading...

PPT – Global Warming PowerPoint presentation | free to download - id: 727437-MjIyZ



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Global Warming

Description:

Global Warming Catalyst What do you think of when you hear the phrase global warming ? Other questions based on previous 4.3 by Lauren * 1m sea rise will occur ... – PowerPoint PPT presentation

Number of Views:169
Avg rating:3.0/5.0
Slides: 23
Provided by: Darin80
Learn more at: http://mrlyrocks.wikispaces.com
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Global Warming


1
Global Warming
  • Catalyst
  • What do you think of when you hear the phrase
    global warming?
  • Other questions based on previous 4.3 by Lauren

2
Objectives
  • By the end of today, all SWBAT
  • Explain how humans cause global warming
  • Describe the effects of global warming on human
    welfare

3
Agenda
  • Catalyst discussion
  • The Greenhouse Effect
  • Who cares about a few degrees?
  • Effects of global warming
  • Begin our storybooks
  • Closing
  • Exit Question

4
The State of our Environment
  • 11 out of the last 12 years rank among the 15
    warmest years in history
  • Our Carbon emissions have increased by 20 since
    1990
  • So what!?

5
The Greenhouse Effect
  • Key Point 1 The Earth is kept warm by
    greenhouse gases
  • Greenhouse gases trap heat in the Earths
    atmosphere
  • The good greenhouse gases are the reason that
    there is life on Earth!
  • Without greenhouse gases, Earth would be -18C

6
The Greenhouse Effect
7
The Greenhouse Effect
8
Carbon Dioxide (CO2)
  • Most important greenhouse gas
  • Remember respiration and photosynthesis!?
  • R animals breathe in O2, breathe out CO2
  • P plants breathe in CO2, breathe out O2

9
  • Humans have caused an enormous increase in CO2
    concentration since industrial times

10
Global Warming
  • Global warming is the increase in global average
    temperature over time.

11
Human Causes of Global warming
  • Key Point 2 Humans cause global warming by
    increasing the amount of CO2 in the atmosphere
  • Burning fossil fuels
  • Gasoline
  • Coal
  • Factory production
  • Plastics
  • Deforestation
  • Fewer trees to breathe in CO2
  • Overpopulation
  • Mo people, mo problems!

12
What this looks like
  • Projected temperature rise of 2-5 C by 2100
  • Asia and Africa most affected

13
Effects of Global Warming
  • Key Point 3 If we do not do something to stop
    global warming, its effects will be CATASTROPHIC
  • CATASTROPHIC!!!

14
Rising Sea Level
  • Because glaciers are melting

15
Climate Refugees
16
Extreme Weather Events
17
Tropical Diseases
18
Desertification
  • 10-20 less food produced in developing countries
  • Much of United States farmland will become desert
  • Massive food shortages

19
Global Warming Storybook
  • Inconvenient Truth Exemplar
  • End product Produce a comic book explaining
  • What the greenhouse effect is
  • Why the greenhouse effect helps us
  • Two ways humans cause global warming
  • Two bad things that will occur if we do not slow
    down global warming quickly

20
GP/IP
  • Rough draft create a storyboard
  • Sketches of each page
  • Outline of the plot
  • Must get Mr. LY to sign off on the rough draft
    before you make the final
  • Final draft
  • Will add more panels tomorrow, so DO NOT FORGET
    AT HOME!!!

21
Closing
  • The Earth is kept warm by greenhouse gases
  • Trap heat in the Earths atmosphere
  • CO2
  • Humans are further warming the Earth by
    increasing the amount of CO2 in the atmosphere
  • If we do not do something to stop global warming,
    its effects will be CATASTROPHIC
  • Can you name some examples?

22
Exit Questions
  • What is global warming, and why does it occur?
    (Hint use the words greenhouse gasses and
    traps)
  • What are TWO ways that humans cause global
    warming?
  • Describe TWO bad things that will occur if we do
    not combat global warming now.

23
Extra Credit
  • Read and write a summary of one (or more) of the
    5 extra credit readings.
About PowerShow.com