Chapter 21.1Environmental Problems

How to do a Pre-read

1. Properly head paper; include title with location and description; Number page

2. List Vocabulary words (no definitions)

3. List Objectives (can paraphrase using words you understand)

4. Read over SRQ’s

Pre-read

PollutionRenewable resourcesNonrenewable resources

overpopulationbiodiversitybiodegradable

• Describe major types of pollution• Distinguish (compare and contrast) between

Renewable and nonrenewable resources • How do Alien species thrive (succeed)• How does destruction of habitat affect organisms?• What impact does Human Population Growth have on

the environment?

Vocabulary:

Objectives:

N-1

Notes:Pollution is the presence of harmful substances, called pollutants, in an environmentTypes of Pollution:•Solid Waste - GarbageMost goes to landfills where it poses threats12Kg (26.5 lbs) waste/person/ week in USA Improper burning causes air pollution

Hazardous waste – harmful to humans and environment medical wastes wastes from factories, etc.

from home – paints, batteries, detergents

Biodegradable packaging (4.2min) http://www.youtube.com/watch?v=GMYANdN0SAY

Types of Pollution:

• ChemicalToxic – poisonousPCB’s, refrigerants (CFC’s) – mostly banned due to damage to ozone layerLead paints, medicines

Radioactive waste Hazardous – can cause cancers,

leukemia, and birth defects From nuclear power plants Take thousands of years to break down

and become “harmless”

Types of Pollution:

• HeatIncrease in greenhouse gases (CO2)Increase/decrease of temperature of

Earth – Global WarmingExtreme weather and temperatures

• Noise Loud noises can affect the ability to

hear and thinkCan lead to hearing loss

Noise and Whales (2.3min) http://www.youtube.com/watch?v=dDLtWdBRzPk&feature=related

Section Review Questions

How to write SRQ’s 1.) Read question 2.) Rephrase the question as part of the answer – do NOT rewrite question 3.) Write each answer in complete sentences. 4.) Skip space between answers to allow for editing

SRQs pg 5001) Two ways pollution can be harmful are...

2) Loud noise can be a pollutant because….

3) Hospitals are helpful because……. But they can be harmful because …… Refrigerators are helpful because … But can be harmful because … Concretes can be helpful by ….. But can be harmful because ….

N-1C

Chapter 21.1b Notes:• Distinguish between renewable and

nonrenewable resources:Renewable resources are those that can be used over and over again. There is an unlimited supply Non-renewable resources are those that can be used only once. Available in a limited supply

N-1C

• Can be used over and over

• Unlimited Supply

• Water, solar power, wind

• Involve with energy

• Natural resources

• Can only be used 1X• Limited supply• Fossil Fuels – coal, oil, petroleum

• How do Alien species thrive (succeed)Alien species are organisms that move into a new

environmentCan be carried unintentionally on clothing

or in luggage etc. – zebra mussels came on ship hulls

Are able to thrive due to lack of natural predators in new area

Some alien species were brought here for a purpose – dandelions and tomatoes are crops

Become invasive if they impact environment, taking resources away from native species

N-1d

Invasive SpeciesA species is considered invasive if it demonstrates

one or more of the following: alters ecosystem functionBecomes established in undisturbed natural areasPrevents or depresses regeneration of native

speciesLacks natural predators

Invasive Plants PA http://www.dcnr.state.pa.us/cs/groups/public/documents/document/dcnr_20026634.pdf

Describe a possible connection between

alien species and endangered species

Endangered Species are those species whose population numbers have fallen dangerously low, and may be unable to maintain their numbers in the wild.

• Effects of habitat destructionBiodiversity means the variety of life (bio = life; diversity = variety). It refers to the many different species found in a particular habitat

Forests – trees provide oxygen, furniture, fuel, food, etcDeforestation is the clearing of forest land often for housing or farming, or for resources

Tropical rainforest land is not very fertile (lacks nutrients) so is not good for farming

Effects of habitat destructionEvery time a habitat is destroyed, biodiversity is lost

• Effects of habitat destructionWetlands – help control flooding, filter pollutants,

provide breeding grounds, help prevent erosion, restore underground water suppliesWere not always valuedOften drained and filled for houses etc Can also be destroyed by pollution

Wetlands (3min) http://whyy.pbslearningmedia.org/resource/lsps07.sci.life.eco.wetlands/the-value-of-wetlands/

Biodegradable refers to products that can break down in the environment. Plastics are not biodegradable and often pollute oceans; animals get caught in plastic rings and bags

Ocean of Garbage (2.13 min) http://www.youtube.com/watch?v=IbGDNpRTKxg&feature=related

Effects of habitat destructionMarine – often damaged by oil spills, pollution can be carried from one ocean to another

Monoculture and the Irish Potato Famine: 1845-1848

• Affects of Human Population GrowthOverpopulation occurs when the number of individuals becomes so large that they can’t get all the food, water, and other resources to survive.

Human population has been growing at much faster rate over recent years; could reach a point of being too big for planet

http://www.worldometers.info/

SRQs pg 504

1) Alien species often thrive in foreign lands because they have no natural predators. They become invasive species when they push out native species.

2) The larger the human population is, the more energy and resources are needed, and the more waste will be produced. Pollution problems happen when there is more waste being produced than can be disposed of without harming the environment.

3) Destruction of wetland habitats affects humans in many ways. Loss of this habitat can increase flooding and erosion, increase pollutants, and decrease underground water supplies.

Chapter 21.2Environmental Solutions

Pre-read

ConservationRecyclingResource recovery

• Explain the importance of conservation• Describe the 3 R’s and their importance• Explain how habitats can be protected• List ways you can help protect the Earth

Vocabulary:

Objectives:

N-4

Pg 505-508

Pg 509-511

•Explain the importance of conservation

Conservation is the wise use of and the preservation of natural resources

Practicing conservation means using fewer natural resources – riding a bike or walking instead of drivingcomposting instead of using chemical fertilizers

Conservation prevents soil and water pollution

•Describe the 3 R’s and their importance

Going Green with Timon and Pumba (12 min)https://www.youtube.com/watch?v=OYP2_wsDkV4

•Describe the 3 R’s and their importance

Going Green with Timon and Pumba (12 min)https://www.youtube.com/watch?v=OYP2_wsDkV4

REDUCE waste and use of nonrenewable resources•Less packaging; biodegradable packaging

•Organic farming reduces use of pesticides and fertilizers

•Alternative sources of energy – solar, wind, water

REUSE products and water• Rechargeable batteries• Plastic bags or cloth bags• Organic farming reduces use of pesticides and fertilizers

85% of water used in homes goes down drain• Greywater is water reclaimed from home use from

bathroom sinks, showers, tubs, and washing machines. It has not come into contact with feces

• may contain traces of dirt, food, grease, hair, and certain household cleaning products; may look “dirty,” but is a safe and even beneficial source of irrigation water in a yard.

RECYCLE a form of reuse

Recycling requires breaking down trash and making it into something new

Only 11% of US garbage is recycled!!

Resource recovery is the process of transforming garbage into electricity

Waste collected in USA could produce energy = to 15 large nuclear power plants!

Single stream with Mr. Can

https://www.youtube.com/watch?v=629clJ5VZFc

SRQs pg 508

1. Conservation is …

2. Three main ways to conserve natural resources are…

3. Conserving resources reduces pollution and other damage to the Earth by …

•Explain how habitats can be protected

Habitats can be protected by • using fewer chemicals – pesticides, fertilizers; develop

more biodegradable pesticides and fertilizers; use natural pesticides specific to pest (aphids)

• reducing pollution – handle hazardous and toxic wastes appropriately; avoid letting wastes get into waterways

• avoiding habitat destruction – conserve current habitats; use resources at a sustainable rate

• protecting species – enforce Endangered Species Act• using alternative energy resources such as wind, solar

and water

•What You Can Do

http://storyofstuff.org/Solutions (9min)

biodegradable plastic bottlehttp://www.biotaspringwater.com/

SRQs pg 511

1. Biodiversity is important because …

2. Habitats must be preserved and protected …

3.3. ReduceReduce: all except #16

ReuseReuse: 2, 8, 10, 11, 12, 13, 14

RecycleRecycle: 1, 3, 6, 15, 16

You only need to reuse a bag (cloth type) 11 times before you've helped to reduce the environmental impact of paper and plastic bags.

How it all ends (10 min)http://www.youtube.com/watch?v=mF_anaVcCXg

Global climate destabilization Don't call it global warming!

Biosphere 2

Biosphere 2 (2012) (9min)

http://www.youtube.com/watch?v=VLroU3PaO3g&list=PLZBxXB2X3kcz1bjUuhkI6-Isua7IcjRC3&index=9

Jane Poynter TED (16 min)

http://www.youtube.com/watch?v=a7B39MLVeIc&list=PLZBxXB2X3kcz1bjUuhkI6-Isua7IcjRC3&index=1