1. Environmentally Friendly?!...
Think about the life cycles of these two products

2. Closed-Loop or Open Loop?
Crude oil
Plastic
Pen
Bin
Landfill / Incinerate
Wood
Paper
Recycle
More paper / compost to make soil

3. Nature works in Closed Loop Systems
Think – what are the inputs and outputs for a wild rabbit?
(No waste!... Outputs from one process become inputs for another process)

4. D.O.M.
What can it be???..

5. Dead Organic Matter
Where does it go?

6. Dead Organic Matter
Worms bacteria fungi - enzymes

7. Ecosystem Balance Waste?
Not all perfect closed loop - rivers carry away leaves, nutrients etc.
Animals may migrate and not return.
Waste?

8. Ecosystem Stability
Relies on soil stability
(or get desertification)

9. Complete ecosystem services worksheet – First side only!
Humans rely upon them…
What do you think they are??!!!
Read p.58 Separate Sciences Book
Complete ecosystem services worksheet – First side only!

10. Bioaccumulation
Due to rubbish produced by humans that cannot be broken down.
Mercury is a particular problem in marine ecosystems – do rest of sheet!

11. Human activity can unbalance ecosystems
How does harvesting crops affect the environment?
What needs to be replaced?

12. Eutrophication What could make the algae grow so quickly?
What happens when it dies?....Summary P.63

13. Lets read the rest and do mind maps!(p.64) or qu!
…The next bits as quick as possible!....
Intensive agriculture – read p.64 & 65 together
Unsustainable fishing – – bullet points
Desertification
Maintaining biodiversity
Sustainable forests
Oil and the future