World Environmental Day June 5:
Climate change and global warming
Important factors for the climate changes lay in Earth gravity and
Atmospheric pressure. Following three sectors which are mainly affected
from above; Air (Air craft ejection of hot air at stratosphere), Water
(Immerse object in the sea) and Earth Crust (Earth crust alteration)
Melting antactic due to increasing global temperature
Since the evolution of human race and its development, to start with
invention of fire and then boat and ships, fire arms, electricity,
mining, industrial revolution, automobile, oil and gas drill, sky
scrapers and mega structures, missiles, nuclear test and detonations,
aero space industry has been contributed extensively by alteration of
nature resulting climate changes.
Humans are like parasites; use up the resources of host the mother
earth ignoring the outcome just to enjoy day to day living without to
having change so called economy the way of life for humans. Hope being
the smartest life form in the planet earth at this juncture it will take
necessary actions to prevent further damages to prevail the existence.
Global warming scenario
Global warming is the increase in the average temperature of the
earth’s near-surface air and the oceans since the mid-twentieth Century
and its projected continuation. Global surface temperature increased
during the 100 years ending in 2005. Increasing global temperature will
cause sea levels to rise and will change the amount and pattern of
precipitation, likely including an expanse of the subtropical desert
Other likely effects include Arctic shrinkage and resulting Arctic
methane release, shrinkage of the Amazon rainforest, increases in the
intensity of extreme weather events, changes in agricultural yields,
modifications of trade routes, glacier retreat, species extinctions and
changes in the ranges of disease vectors.
The causes of the recent warming are an active field of research. The
scientific consensus is that the increase in atmospheric greenhouse
gases due to human activity has caused most of the warming observed
since the start of the industrial era, and the observed warming cannot
be satisfactorily explained by natural causes alone.
This attribution is clearest for the most recent 50 years, which is
the period when most of the increase in greenhouse gas concentrations
took place and for which the most complete measurements exist. (Extract
from IPCC global warming report)
Factor One, AIR
This is what we know from IPCC and other recognized institutes. “The
contribution of civil aircraft-in-flight to global CO2 emissions has
been estimated at around 2 percent and some other reports indicate as
much as 12 percent. However, in the case of high-altitude airliners
which frequently fly near or in the stratosphere, non-CO2
altitude-sensitive effects may increase the total impact on
anthropogenic (man-made) climate change significantly.
This problem is not present for aircraft that routinely operate at
lower altitudes well inside the troposphere, such as balloons, airships,
helicopters, most light aircraft, and many commuter aircraft.
While the principal greenhouse gas emission from powered aircraft in
flight is CO2, other emissions may include nitric oxide and nitrogen
dioxide, (together termed oxides of nitrogen or NOx), water vapour and
particulates (soot and sulfate particles), sulfur oxides, carbon
monoxide (which bonds with oxygen to become CO2 immediately upon
release), incompletely-burned hydrocarbons, tetra-ethyl lead (piston
aircraft only), and radicals such as hydroxyl, depending on the type of
aircraft in use.”
I agree with the most of elements mentioned by IPCC
(Intergovernmental Panel on Climate Change) report. However it has
missed out the important factor “ejection of hot air” which I believe
the main effect from aircraft to be concentrated on.
From the Second World War, demands for aircraft have increased in
alarming rate. At present you won’t be able to buy aircraft from main
manufacturers for almost for a next decade as the total units are being
booked. Due to this factor many airlines leases from another at higher
rate in order to maintain the demand.
According to the report from the Air Port Council International total
worldwide passenger traffic reached all time high in 2007, increasing by
6.9 percent over 2006. Final reports from 1200 ACI member airports
confirm that they processed 4.8 billion passengers, 88.5 million metric
tonnes of cargo and 76.4 million aircraft movements.
Following aircraft movement not included in above report;
Official Government flights
Commercial air cargo carriers
Satellite launches and rocket launches
Most of the aircraft fly on high altitude (33,000ft) at Stratosphere,
because the troposphere which is closer to the earth (11km) above sea
level is where weather occurs due to the composition of the water vapour,
a key factor for the weather changes in the air, resulting clouds, rain,
snow or other weather features.
It is also an unstable layer where the air is constantly moving. As a
result, aircraft flying through the troposphere may have a very bumpy
ride, what we know as turbulence. You may have experienced this when
flying before! Because of this turbulence, most jet airlines fly higher
above the Earth in the stratosphere where the Ozone layer is because at
this layer air is more still and clear as they can fly above the clouds.
Also less air pressure and gravity (Atmospheric density decrease with
the altitude plus gravity decrease by 50 percent above 5.6km from the
Most of military fighter craft and spy craft fly between 39,000ft to
45,000ft just on the upper part of Stratosphere where the Ozone layer
is. Fighter air craft speed over 1000km per hour scatters low pressure
Ozone layer plus burning low dense oxygen and leaving CO2, hot air and
Before we go further please have a look at this egg in the bottle,
elementary science project which will give you a fair idea of my theory.
How to get an egg inside the bottle
If you just set the egg on the bottle, its diameter is too large for
it to slip inside. The pressure of the air inside and outside of the
bottle is the same, so the only force that would cause the egg to enter
the bottle is gravity. Gravity isn’t sufficient to pull the egg inside
When insert burning match inside it heats the molecules of air in the
bottle and causes the molecules to move far away from each other. Some
of the heated molecules actually escape out past the egg that is resting
on the mouth of the bottle.
When the flame goes out, the molecules of air in the bottle cool down
and move closer together. This is what scientists refer to as a “partial
vacuum “. Normally the air outside the bottle would come rushing in to
fill the bottle.
However, that darn egg is in the way! The “push” or pressure of the
air molecules outside the bottle is so great that it literally pushes
the egg into the bottle.
Imagine over 200,000 aircraft daily burning fuel above earth surface
at 33,000ft and producing hot air, CO2 and other by products.
If we apply the above elementary science; when HOT AIR emit by the
aircraft at a cruising speed of 800kms to stratosphere its expand the
air molecules by pushing towards the upper stratosphere and when air
cool down creating “partial vacuum” displacing the lower stratosphere
air molecules (*since gravity and air density decrease with the
When this physical transaction takes place at stratosphere, known
boundary expand gradually towards the upper stratosphere causing clouds
to rise alone accordingly. This move also supported by the construction
of man made mega structures and skyscrapers by lifting the point of
gravity effect from sea level to structure top. (Please refer to the
gravitation field variation anomaly)
These factors are more visible in United States, as each year more
than 62 million commercial and military flights across the skies and
also by sky rise buildings more than any other country, which are
resulting higher temperature at sea level.
Therefore I believe hot air emission by air craft at 33,000ft above
the sea level more lethal than CO2 emission.