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Title: Introduction to Environmental Issues Power Point

Introduction to Environmental Issues Power Point
Environmental Issues
  • Content covered
  • Introduction into Env. Science
  • human population, ecological footprints, Easter
    Island, studying science
  • Earths systems
  • Properties of matter and water, spheres, levels
    of ecosystems, communities, populations, food
    chains, natural selection
  • Biomes, Ecosystems and Biodiversity
  • Our Water-
  • bodies of freshwater, wetlands, oceans and
    pollution to above
  • Our Land
  • Structures of our land and destruction of the
    land mining, urban and agriculture
  • Our Air and Global Climate Change
  • Structure of air and pollutants
  • Alternative Energy and Resources
  • Assessments and Activities
  • Labs
  • Lab Reports
  • Open-notes quizzes after each power point
  • Exams (challenging)
  • 1 Creative Research Paper-Exxon Valdez Oil Spill
  • Creating models
  • Outdoor explorations
  • Field Trip?
  • Final Exam- very difficult?

Environmental Pretest
  • Answer each question, within your groups.
  • Be prepared to discuss and answer with the class.

Importance to Ecology Boxes
  • Identify the significance of each object whether
    important or destructive.
  • Which topic of the year does each apply to?
  • Introduction to Environmental Issues
  • Earths Systems- parts of ecosystem and species
  • Biomes, Aquatic Ecosystems and Biodiversity
  • Our Land- Agriculture, mining and waste
  • Our Water- freshwater and ocean pollution
  • Our Air and Global Climate Change
  • Alternative Energy and Sustainability
  • Discussion/Questions

Biosphere- all organisms and their environment
Hydrosphere- all water on earth.
Atmosphere-the gases that surround the earth.
Geosphere- surface of earth down to its center.
Anthrosphere- humans
What is ecology?
  • The scientific study of the relationships between
    organisms and their environment.
  • Includes both physical and chemical conditions
  • Comes from the Greek terms oikos meaning the
    family household and logy means the study of

  1. Environment- the sum total of our surroundings,
    including all of the living things and nonliving
    thing with which we interact.
  2. Environmental Science- the study of how the
    natural-world work, how our environment affects
    us, and how we affect our environment.
  3. Ecology- the study of interactions between
    organisms and their ecosystems
  4. Ecological Footprint- the expresses the
    environmental impact of an individual or
    population in terms of the cumulative amount of
    land and water required to provide raw materials
    the person or populations consumes and dispose of
    or recycle the waste the population or person

Natural Resources
  • Renewable natural resource- resources that are
    naturally renewed over a short period of time.
  • Ex Sunlight, wind, wave, geothermal
  • Nonrenewable natural resource- natural resources
    formed much more slowly than we use them.
  • Oil, natural gas, coal, copper, aluminum and

  • A resource that is used at the same rate in the
    foreseeable future.
  • Human population has driven up consumption of
    natural resources to unsustainable levels due to
    growth of the largest human population in

Easter Island Analysis
  1. What was first observed when explorers came upon
    Easter Island?
  2. What were some of the things that scientists
    have examined to recreate the story of Easter
  3. What did the TWO graphs observed demonstrate
    about population and resources trees on Easter
  4. How did the creation of the multiple statues lead
    to the BIOME completely evolve?
  5. What were the impacts of on the birds species and
    coastal sea life?
  6. How were the remaining chickens stored and why is
    this relevant?
  7. When the skeletons were examined, what did
    scientists find out about the causes of death?
  8. How does this ancient story relate to
    Environmental Issues? How does this story relate
    to humans on Earth as a whole?

Do Now
  1. How many Earths does it take to sustain your
  2. How does your impact compare with other people
    of the world?
  3. What are some simple/daily changes you can make
    to your life to live a more sustainable life?

How many earths for your lifestyle?
  • There are approximately. 13.4 billion hectares of
    biologically productive land and water available.
  • The is approximately 7.1 billion people on the
  • This is an average of ______global hectares per
  • Take your Ecological Footprint in Hectares and
    divide by 1.89 of Earths to sustain your
  • Therefore, your lifestyle is consumes
  • Due to rapid population growth, this figure is

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Human Population
Human Population Continued
  • Influential moments in Human History
  • Agriculture revolution- (about 10,000 years ago)-
    changed from hunters and gathers to settled
  • Bubonic Plague- (mid 1700s)
  • Industrial Revolution- society shifted to a rural
    life and urban society. Led to booms in
    technology such as sanitation, medical
    advancements, improvements in agriculture, energy
    and manufacturing.

Source United Nations Population Division, World
Population Prospects The 2010 Revision, medium
variant (2011)
Human Histogram
Human Population and Carry Capacity/Resources
  • Earths population has QUADRUPLED in the past 100
  • From 1995-2006, 6 billion to 6.5 billion
  • 78 million people are added to this planet every
  • Over 200,000 a day!
  • We have converted half of the planets land
    surface for agriculture.
  • Since the industrial revolution, carbon dioxide
    risen by 31.
  • Currently have passed 7 billion, more than double
    world population since JFK was in office.

Ecological Footprint
  • The term ecological footprint and its calculation
    method was introduced by William Rees, Mathis
    Wackernagel in 1992-94.
  • Ecological footprint is evolved from another term
    called appropriated carrying capacity .
  • Ecological footprint analysis is now used around
    the globe as an indicator of environmental
  • In a calculation ecological footprint in 2007,
    human populations total ecological footprint was
    estimated at 1.5 planet Earths that is, humanity
    uses ecological services 1.5 times as quickly as
    Earth can renew them

Food and energy have (relatively) increased with
population but at what cost? POSITIVES?
Human Population and Carry Capacity and Resources
Ecological Footprint for the United States
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YOUR Ecological Footprint on the World Activity
  • Answer each line and place the points on the
  • Add up the points for a subtotal for each
  • Then, add up the grand total.
  • With this grand total, follow the directions to
    find your specific ecological footprint.
  • Then, we will compare your footprint with the
    rest of the class as well as other parts of the

What is an ecosystem?
  • An ecosystem is all living and non living things
    in an environment.
  • Comes from eco meaning environment and system
    functioning as a unit.
  • An ecosystem can be as large as a forest or as
    small as a mud puddle.
  • What is the difference between and ecosystem and
  • A habitat is a specific area in which an organism
  • This habitat provides all the resources (shelter,
    breeding sites, mates, nutrition)needed for the
    organism to survive.
  • Loss of Habitat leads to loss of organism.

Abiotic vs. Biotic factors
  • Abiotic are the nonliving components of an
  • Soil, water, sunlight, temperature, water, oxygen
  • Biotic are the living factors within and
  • All plants, animals, microbes and bacteria
  • A healthy and sustainable ecosystem has a cycling
    and balance of influence from both abiotic and
    biotic factors

Activity Biotic vs. Abiotic Factors
  • Go around the room to each brown bag.
  • WITHOUT looking, feel inside the bag and
    hypothesis whether the material is abiotic or
  • Complete the chart and turn into the bin, after

Case Study -Dead Zones in the Gulf of Mexico
  • How do the nonliving parts of the Earths systems
    provide the basic materials to support life?
  • Discussion Questions
  • How is a dead zone formed? What are the
    chemicals involved and the process leading to its
  • What were the abiotic factors involved?
  • What were the biotic factors involved?
  • How does this topics hit closer to home, here in
    New Jersey? (especially after Sandy)

Scientific Method and Writing a formal lab report
in Science
  • B. Writing a Formal Lab Report
  • A. Scientific Method- Steps
  • Hypothesis- an educated guess as to what you
    think the outcome of the experiment will be and
  • Variables
  • Independent- The change that is made, does NOT
    depend on another variable.
  • Dependent- The results of the change, will
    usually depend on the ind. var.
  • Control- things that are kept the same in an
  • Procedure- detailed, numbered steps that can be
    replicated to come to the same results
  • Data- results of the experiment organized into a
    data table and graph with very specific
    observations and numbered data with 2 s after
    decimal and with units.
  • Content Application-How does this lab relate to
    the content being covered in this unit?
  1. Question or Problem
  2. Research/Background info
  3. Hypothesis
  4. Experiment/Procedure
  5. Results
  6. Analysis/Conclusion
  7. Retest

Sustainability Project
  • Grading
  • Research for topics/ideas20pts
  • Group Collaboration.10pts
  • Presentation from each group member20pts
  • Your design/prints/sketches.10pts
  • Total Points..60pts

Do Now
  • Can we live a more sustainable life with less
    negative impacts on the Earth here in NJ?