some senior name chintoo-2010, thanks to him, uploaded the way to write an outline. please check it. this outline i wrote in accordance with his draft:


[WRITING THE ESSAY OUTLINE IN ACCORDANCE WITH: SIR. CHINTOO2010’s OUTINE METHOD]
Forests are the lungs of earth. Destruction of the world’s forest amounts to death of world, currently we know. What is your opinion? Use specific reasons and examples to support your answer.
Problem: deforestation
Time scope: present plus future
Place scope: Plant earth
Coining the name of essay:


“Perils of deforestation”
Outline:
1- Introduction:
After industrial revolution in 18th century, more land and natural resources became a prerequisite for economical and social growth of countries. Consequently it gave rise to indiscriminate deforestation and wasteful use of natural resources. On one hand more fuel produced more environmental hazards while on the other hand, forests, the moderators became increasingly thin. This resulted in pollution and general spread of diseases and much more disturbances for ecosystems. Thus trees are the lungs of planet, making it habitable for us.
2- Effects of deforestation:
i- Atmospheric filtering stopped
a- Pollution whether noise of dust will be rampant
b- Diseases will be widespread
ii- Co2 level will shoot up
a- Very densely clouded green house will be observed
b- Temperature will rise
c- Water level rise
d- Crop yield disturbed in terms of quality and quantity
e- Polar caps may melt and summer/ winter balance will be disturbed
f- Frozen mud in northern Canada and green-Land will be releasing trapped methane
g- Skin cancer will be increased probability disease
h- Species will be disappearing
iii- Sudden rise and fall of temperature at day and in night
a- Sudden rise and fall like deserts
b- Change in energy uses not per season, but per day
c- Will make life miserable
iv- Corrosion of earth
a- Woodless land under heavy rains cannot survive its fertile crust.
b- Useful salts will be flown away to sea
v- Habitats of species destroyed
a- Not only man but so many species will be disturbed
b- An overall massacre of wild life
c- Some species will become extinct
d- Surviving Wild life disturbed
vi- Forest resources get limited
a- So many natural resources like honeys, herbs, bark, fodder, wood will become insufficient
vii- Cultivated lands will become brittle
viii- Dams will start filling
a- First stage surface scratched
b- Second stage flown into dams
c- 3rd stage capacity will go down
Conclusion:
Forests are inevitably playing the same or even sophisticated role in sustaining life on planet earth, as compared to lungs in human body. With increasing deforestation man has hemmed himself in so many problems but his survival also has come under question. Thus to let the planet live and nourish in a natural course and harmony planting forests is necessary.

your ideas are good but the headings, sub headings n sub sub headings have make it too complicated. To me more simpler it is the better. N examiners also like simple presentation.