2. Principal biological systems of
the earth
• Four biological systems referred by Mr. Lester R. Brown in his
book “The Global Economic Prospect’ namely : fisheries,
forests, grasslands and cropland
• They form the foundation of the global economic system
• Apart from supplying food, the four systems provide virtually
all the raw materials for industry except minerals and
petroleum- derived synthetics
3. Human claims on these systems
reaching unsustainable level.
• Productivity is being impaired
• Fisheries collapsing and forests disappearing
• Grasslands converted into barren wastelands
• Croplands deteriorating
• Over-fishing common in protein-conscious and protein-hungry
world
• Forests being decimated in poor countries for firewood
• Several species of life face extinction as a result of destruction
of tropical forests
• World’s ancient patrimony of tropical forests is eroding at the
rate of forty to fifty million acres a year.
4.
5. • Growing use of dung for burning deprives the farmlands as an
important natural fertilizer
• A five-fold increase in the rate of forest planting needed to
cope with expected fuel wood demand in the year 2000.
• James Speth, the President of World Resources Institute
declared that we are losing the forests at an acre-and-a-half
to a second’.
6. Constitutional & legal
action -a farce
• Laws are never respected nor enforced in India
• Article 48A of the constitution provides for the state to
protect and improve and converse forests and wildlife, but the
truth is quite contrary
7. Present scenario highly deplorable
• Report of Parliament’s Estimates Committee highlights near
catastrophic depletion of India's forest at the rate of 3.7
million acres a year
• Unofficial reports indicate 8 times the rate indicated by
government statistics
• A 3-year study conducted by Unites States using satellites and
aerial photography warned of the ‘critical condition’ of the
world environment
• Growth of world population jeopardizing the future of human
society. Took one million years to add the first billion and at
present the world population increases by a million every 4
days with total population of 5.7 billion
8. Population control – the only solution
• Development is the best contraceptive
• Fertility falls as incomes rise
• Education spreads and health improves
• No development possible due to population explosion
• Rich get richer, poor beget children condemned to remain
poor
• Compulsory sterilization not suggested but voluntary family
planning should be promoted
• Choice to be made between control of population and
perpetuation of poverty
• Population control to be given top priority in India
9.
10.
11.
12.
13. Why is our planet damaging
• Mankind is now the number one cause of all the
destruction happening on Earth. As well as trying to
destroy each other on the battle-field, we are the
cause of a series of other disasters, beginning
• with the industrial exploitation of the resources of the
Earth.
• This has become especially bad since the population
of the Earth has trippled in the last fifty years to a
point which, even with more efficient means of
distribution, there is simply not enough food to go
around.
19. Emission of Waste water,
Waste gases,
Hazardous waste,
Ecological imbalance
Release of Radioactive rays
dangerous for health
Increase salinity and
Reduced vegetation
20. Easy! 8 Ways to save our planet
1. RECYCLE GLASS
Recycled glass reduces
related air pollution by
20 percent and related
water pollution by 50
percent. If it isn't
recycled it can take a
million years to
decompose.
2. TURN OFF COMPUTERS AT
NIGHT
By turning off your computer
instead of leaving it in sleep mode,
you can save 40 watt-hours per
day. That adds up to 4 cents a day,
or $14 per year. If you don't want to
wait for your computer to start up,
set it to turn on automatically a few
minutes before you get to work, or
boot up while you're pouring your
morning cup ‘of tea.
21. 3. RECYCLE NEWSPAPER
There are 63 million
newspapers printed each day
in the U.S. Of these, 44
million, or about 69%, of them
will be thrown away.
Recycling just the Sunday
papers would save more than
half a million trees every
week.
4. WRAP CREATIVELY
You can reuse gift bags,
bows and event paper, but
you can also make
something unique by using
old maps, cloth or even
newspaper. Flip a paper
grocery bag inside out and
give your child stamps or
markers to create their own
wrapping paper that's
environmentally friendly and
extra special for the recipient.
22. 5. RETHINK BOTTLED WATER
Nearly 90% of plastic water
bottles are not recycled, instead
taking thousands of years to
decompose. Buy a reusable
container and fill it with tap
water, a great choice for the
environment, your wallet, and
possibly your health. The EPA's
standards for tap water are more
stringent than the FDA's
standards for bottled water.
6. PLANT A TREE
It's good for the air, the land,
can shade your house and
save on cooling (plant on the
west side of your home), and
they can also improve the
value of your property.
Make it meaningful for the
whole family and plant a tree
every year for each member.
23. 7. PLASTIC BAGS SUCK
Each year the U.S. uses 84 billion
plastic bags, a significant portion of
the 500 billion used worldwide.
They are not biodegradable, and
are making their way into our
oceans, and subsequently, the food
chain. Stronger, reusable bags are
an inexpensive and readily
available option.
8. LET YOUR FINGERS DO THE
WALKING—ONLINE
Consider if you really need a
paper phone book. If not, call
to stop phone book delivery
and use an online directory
instead. Some estimate that
telephone books make up
almost ten percent of waste at
dump sites. And if you still
receive the book, don't forget
to recycle your old volumes.
24. Drive Less and Drive Smart
• Less driving means fewer emissions. Besides saving gasoline, walking and
biking are great forms of exercise. Explore your community
mass transit system, and check out options for carpooling to work or school.
•
• When you do drive, make sure your car is running efficiently.
• For example, keeping your tires properly inflated can improve your gas
mileage by more than 3 percent. Every gallon of gas you save not only helps
your budget, it also keeps 20 pounds of carbon dioxide out of the
atmosphere.
