done for English at school ppt..........

2. • Carbon Foot Print is historically defined
as “ the total sets of green house gas
emissions caused by an organization ,
event , product or person.
• The total carbon foot print cannot be
calculated because of the large amount
of data required and the fact that
carbon di oxide can be produced by
natural occurences.

3. • It is for this reason that Wright , Kemp , and
Williams , writing in the journal Carbon
Management , have suggested a more
practicable definition :
• A measure of the total amount of Carbon di
oxide ( Co2) and methane ( CH4) emissions of
a defined population system or activity
considering all relevant sources sinks and
storage.
• Green House Gases ( GHG) can be emitted
through transport , land clearance , and the
production of consumption food .

4. • For simplicity of reporting, it is often
expressed in terms of the amount of carbon
dioxide, or its equivalent of other GHGs,
emitted.
• Most of the carbon footprint emissions for
the average U.S. household come from
"indirect" sources, i.e. fuel burned to produce
goods far away from the final consumer.
These are distinguished from emissions which
come from burning fuel directly in one's car
or stove, commonly referred to as "direct"
sources of the consumer's carbon footprint.[4]

5. • The concept name of the carbon footprint
originates from ecological footprint,
discussion,[5] which was developed by Rees
and Wackernagel in the 1990s which
estimates the number of "earths" that would
theoretically be required if everyone on the
planet consumed resources at the same level
as the person calculating their ecological
footprint.

6. • Carbon emissions, most notably carbon
dioxide (CO2), are part of a collection of
gases that negatively influence the
quality of our air and increase the
greenhouse effect. Greenhouse gases
have a direct influence on the
environment, causing extreme weather
changes, a global temperature increase,
the loss of ecosystems and potentially
hazardous health effects for people.

7. • The U.S. Energy Information Administration states
that greenhouse gases are gases that keep heat in
the earth’s atmosphere. They do this by making it
easier for sunlight to enter the atmosphere. And
when the sun’s rays hit the earth, they also cause a
reflection — infrared radiation — which is what
stays in the earth’s atmosphere due to greenhouse
gases. Although greenhouse gases do occur
naturally, human activity contributes a great deal
to greenhouse gas emissions. Your carbon
footprint — or your impact .

8. • A greenhouse gas (sometimes abbreviated GHG) is
a gas in an atmosphere
that absorbs and emits radiation within the thermal
infrared range. This process is the fundamental
cause of the greenhouse effect.[1] The primary
greenhouse gases in the Earth's
atmosphere are water vapor, carbon
dioxide, methane, nitrous oxide, and ozone.
Greenhouse gases greatly affect the temperature of
the Earth; without them, Earth's surface would
average about 33 °C colder, which is about 59 °F
below the present average of 14 °C (57 °F)

9. • Appliance Use
• Water Use
• Driving and Travelling

10. Appliance Use
• Probably rely on a variety of appliances each day to
complete different tasks. But according to Carbon
Footprint, using electricity, coal, gas and oil helps
create a large carbon footprint. Time For Change
indicates that for every 32 hours you have your
computer on, 1 kg of carbon dioxide is emitted into
the environment. Carbon Footprint identifies several
different household appliances as being the main
contributors to a large carbon footprint: Electric
dryers, refrigerators, freezers, ovens and
dishwashers emit carbon dioxide each time they are
used.

11. Water Use
• Carbon Footprint reports that consumers are
wasting "huge quantities" of potable water
by using it for non-essential purposes.
Cleaning water also takes a great deal of
energy to make it safe for human
consumption. Carbon Footprint recommends
collecting rainwater to use for purposes
other than drinking. Paying close attention
to how you use your water and how much
you use can help reduce the size of your
carbon footprint.

12. Driving and Travelling
• Driving a car is convenient and often
necessary for travelling long distances.
Time For Change, a website that focuses
on improving the environment, reports
that for each gallon of gas used, 8.7 kg
of carbon dioxide is emitted. The more
you drive, the more harmful carbon
dioxide your car emits into the air.

13. • Insulating your home
• Buying energy-efficient
appliances
• Switching off electronics at the
wall
• Walking, cycling or using public
transport
• Holidaying closer to home.

14. Facts on carbon footprint
• There has been a huge amount written about
Global Warming and how it is effecting our
lives now and what might happen in the
future. Some of the Superpowers are using
their political muscle to promote the
reduction of Greenhouse Gases and others to
oppose it for whatever reasons. The fact is
that the actions of the human race are
damaging the earth in many ways.

15. Carbon footprint calculator
• The seven sources of CO² from fossil fuel combustion
are (with percentage contributions for 2000-2004:
• Solid fuels (e.g. coal): 35%
Liquid fuels (e.g. petrol): 36%
Gaseous fuels (e.g. natural gas): 20%
Flaring gas industrially and at wells: <1%
Cement production: 3% Non-fuel hydrocarbons: <1%
The "international bunkers" of shipping and air
transport not included in national inventories: 4%.

16. Carbon offsets
• Carbon Offsetting is the term given to the act
of doing something 'green' to compensate for
some or all of your Carbon emissions. This
can be done by planting trees yourself to
reduce the carbon dioxide in the atmosphere,
by planting trees as a Biofuel for harvesting
in ten years time, or by generating your own
renewable energy to go back to save on the
use of Fossil Fuels for electricity generation.