human impact as the human population grows larger and larger, what effect are we having on the...

Human Impact

As the human population grows larger and larger, what effect are we having on the natural world? (The Earth)?

Human Impact

What do we already know about….

habitat destructiondeclining wildlifeerosiondesertificationdeforestationwater pollution

Ozone depletion (CFCs)

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone

concentrations if CFCs had not been

banned.

Ozone protects earth from UV rays. CFC attach to ozone and take out chunks, allowing for less pro-tection

Global Warming

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

Line plot of global mean land-ocean temperature index, 1880 to present, with the base period 1951-1980. The dotted black line is the annual mean and the solid red line is the five-year mean. The green bars show uncertainty.

Layer of CO2 traps sun’s heat onto Earth, causing tempera-tures to rise

QUICK BRAINSTORM & SHARE-OUT

1.Why do you think people think it is okay

to litter or pollute the environment?2. Where does pollution go?

Pollution The process of making land, water, air or other parts of the environment dirty + unsafe or unsuitable to useUnfortunately, animals and other living organisms are often harmed due to pollution…https://m.youtube.com/watch?v=U_6QlABQuxw Turtlehttps://m.youtube.com/watch?v=d2J2qdOrW44 Cow

DeforestationDeforestation leads to:•Loss of habitat•Loss of biodiversity (diversity of living things)•Loss of organisms that produce oxygen (02) and reduce

carbon dioxide (CO2) http://earthenginepartners.appspot.com/science-2013-global-forest)

Acid Rain• Burning of fossil fuels nitrates +

sulfates into the air mix with water vapor and form nitric + sulfuric acid (acid rain)

Consequences:• Damage to plants, soil, and

aquatic systems• Chemically erodes statues,

bridges, buildings

Herbicides & PesticidesChemicals used to control pests

We spray herbicides and pesticides without knowing the possible long term consequences. (Examples PCB & DDT)

Pesticides likePCB & DDT

Can build up in the environment causing Biological Magnification Chemicals magnify (become more concentrated) as they go up the food chain, and become lethal in top predators

We Do: AdvocacyUsing your environmental issue advocate and educate the public about:

Your whiteboard should include:• the name/definition of the issue (Ozone depletion

(CFCs); Burning of fossil fuels; Global warming; Pollution (air, water, soil); Deforestation; Acid rain; Pesticides & her-bicide usage; Biomagnification)

• the cause/ of the issue and consequences• what people can do to help• Drawings or diagrams of some sort• Graph/table ms.zbc.science@gmail.-

com

Self Check

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

NASA projections of stratospheric ozone concentrations if chlorofluorocarbons had not been banned.

Population growth leads to:Ozone depletion (CFCs); Burning of fossil fuels; Global warming; Pollution (air, water, soil); Deforestation; Acid rain; Pesticides & herbicide usage; Biomagnification

Home Learning Due October 2:1. Calculate your carbon footprint

www.nature.org/greenliving/carboncalculator

2. Write a 1 paragraph reflection on your carbon foot-print.

3. Come up with a list of 10 things you can do every day to reduce your carbon footprint.

So, a lot is going wrong… Is anyone in the world doing anything to make the environment

better?