1. Learning objectives: To investigate the dynamic nature of resources

2. To understand the concept of natural capital
Recap
What we learnt
How we learnt it
Questions I have

3. Natural capital
Natural capital is not manufactured but is useful to humans.
This yields natural income e.g. fruit, fresh water,
Use the examples on the next slide.
Sort them into different categories.

4. Describe the trend. Add some figures to support this.
Why are there 3 possible projections for 2300?

5. They provide 80% of all western foods- like pineapple, coffee
They are a source of Illegal drugs like cocaine
Many indigenous people in rainforests live the way they have lived for centuries they can teach us a lot
They provide saleable commodities like Rubber and timber
Rainforests are places we can visit on treks and holidays, increasingly as eco-tourists
25% of all cancer fighting drugs
One rainforest drug, Rosie Periwinkle improved childhood leukaemia sufferers survival chance from 10 to 90%
Plants from rainforests are used in the contraceptive pill
One rainforest drug is used to help diabetics
Small monkeys called marmosets from rainforests are used to test drugs before human tests
Over 50% of the biological diversity on Earth is found in tropical rainforests
They provide homes for many endangered animals species- such as Orang-Utans, Bonobos, Poison Arrow frogs, etc
They are a unique biome
They regulate the hydrological cycle
They provide nutrients for soil to be productive
They store carbon, a contributor to global warming
Divide into renewable replenishable, non renewable

7. Economic
Ecological
Scientific
Intrinsic

8. Are these resources valuable to everyone?
How might the value of some of these resources have changed over time?

9. Value of the environment
Consider the systems in this list:
Your home
The Amazon rainforest
Great Barrier Reef
School
Tokyo
Hong Kong
Sai Kung Country Park
The Sahara Desert
Antarctica
Shanghai
Put them in order of increasing ecological value
Now in order of economic value.
Come up with a list of criteria to value the systems
Exam style question
Explain why the value of the environment can be difficult to quantify
Start lesson 2

10. See p40 and 41 on the resource booklet
(wisdom) Answer the questions on the sheet

11. Intrinsic value

12. intrinsic value
The intrinsic value of an animal refers to the value it possesses in its own right, as an end-in-itself, as opposed to its instrumental value, its value to other animals. The phrase has been adopted by animal rights advocates. ...

13. Sustainability relies on living within the natural income generated by capital and not using the capital
What would be the consequences of removing natural capital?
Fish, trees, mangroves.
Create a spiral of decline or flow diagram

14. Natural capital provides a wide variety of valuable ecosystem services including flood control, climate stabilization, maintenance of soil fertility, and even beauty and play.
Globally, and within the bioregion, natural capital is being depleted through over-harvesting, development, poor agricultural practices, toxic contamination, and other causes.
Human capture

15. 3 categories of Natural Capital
Renewable - living species and ecosystems which can be replaced by natural productivity (photosynthesis!) as fast as they are used (e.g. food crops, timber).
Replenishable - non-living resources which are can be continuously restored by natural processes as fast as they are used (e.g stratospheric ozone layer, groundwater).

16. Any use of these resources implies depletion of the stock.
3. Non-renewable - Resources which cannot be replenished at the same rate at which they were used.
Any use of these resources implies depletion of the stock.
e.g. fossil fuels, minerals.
If these resources are being depleted we must:
1) improve efficiency of use 2) develop substitutes or 3) recycle

17. How can the environment be valued
Create a fact file on the UNEP’s system

18. The concept of sustainability
Find a definition