The area on Uttarakhand falls within seismic zone. Seismic Hazard Assessment of Dehradun Urban Complex at Micro Level was done and carried out by Geological Survey of India to classify the urban agglomeration into zones of different seismic hazard levels in relative terms. It was an integrated effort where inputs from geological, geo-technical and geophysical surveys were converged to generate data products that distinguished the dynamic characteristics of the founding media. In this study both geo-technical and geophysical approaches were used to classify the area into micro-zones based on site response analysis.

Because of the project, not only amount to felling of almost 10,000 trees, flora, fauna, but the entire ecosystem shall be destroyed. 
Environmental Impact Assessment (EIA) is a planning tool generally accepted as an integral component of sound decision-making. EIA is to give the environment its due place in the decision-making process by clearly evaluating the environmental consequences of the proposed activity before action is taken.

Environmental Clearance (EC) for certain developmental projects has been made mandatory by the Ministry of Environment & Forests through its Notification issued on 27.01.1994 under the provisions of Environment (Protection) Act, 1986. Keeping in view a decade of experience in the Environmental Clearance process and the demands from various stakeholders, the Ministry of Environment and Forests (MoEF) issued revised Notification on EC process in September 2006 and amended it in December 2009. It was considered necessary by MoEF to make available EIA guidance manuals for each of the development sector. It is further submitted that as per the Environment Clearance Process the objective of the EIA Notification, 2006 is to set procedures of environmental clearance before establishment of identified nature and size. The suitability of site proposed for a proposed development is one of primary concerns in according environmental clearance to a project.

That, vide Notification dated 22/12/2014 issued by Ministry of Environment & Forest, New Delhi, a project of township of Area development Projects shall require Environmental Assessment Report.

Environmental Impact Assessment was and is necessary in absence of the same any project more particularly a project of such a large scale wherein the airport is being developed and decision of cutting 10,000 trees by the State Government; bypassing the same shall cause loss to ecological balance and public at large.

As regards cutting and felling of Trees and any kind of development in State of Uttarakhand is concerned, Hon'ble Supreme Court of India formed a Supreme Court Monitoring Committee. As per the guidelines, it is incumbent on the part of the respondent to seek prior permission and sanction from Supreme Court Monitoring Committee for carrying out work of development. That, there is not record available to show that any permission from the Committee constituted by Hon’ble Supreme Court of India and from Ministry of Environment & Forest, is sought and went ahead declaring with the implementation of the “Airport” Project and is in a wake of acquiring land earmarked for the same.

It's important to save trees so the environment can be protected. Its not just one person that would be affected by cutting of trees. But the masses of public, animals, flora and fauna would get affected.

The existing airport can be developed and enhanced but not by acquiring land of Forest and felling trees. How far is the need to expand the airport is a question. For mere development of concrete, the flora, fauna and the natural resources cannot be exploited and ruined.

Trees renew our air supply by absorbing carbon dioxide and producing oxygen.
The amount of oxygen produced by an acre of trees per year equals the amount consumed by 18 people annually. One tree produces nearly 260 pounds of oxygen each year.
One acre of trees removes up to 2.6 tons of carbon dioxide each year.
Trees lower air temperature by evaporating water in their leaves.
Tree roots stabilize soil and prevent erosion.
Trees improve water quality by slowing and filtering rainwater, as well as protecting aquifers and watersheds.
More than half of the world’s estimated 10 million species of plants, animals and insects live in the tropical rain forests. One-fifth of the world’s fresh water is in the Amazon Basin.
One hectare (2.47 acres) may contain over 750 types of trees and 1500 species of higher plants.
At least 80% of the developed world’s diet originated in the tropical rainforest. Its bountiful gifts to the world include fruits like avocados, coconuts, figs, oranges, lemons, grapefruit, bananas, guavas, pineapples, mangoes and tomatoes; vegetables including corn, potatoes, rice, winter squash and yams; spices like black pepper, cayenne, chocolate, cinnamon, cloves, ginger, sugar cane, turmeric, coffee and vanilla and nuts including Brazil nuts and cashews.
At least 3000 fruits are found in the rain forests; of these only 200 are now in use in the Western World. The Indians of the rain forest use over 2,000.
Rainforest plants are rich in secondary metabolites, particularly alkaloids. Biochemists believe alkaloids protect plants from disease and insect attacks. Many alkaloids from higher plants have proven to be of medicinal value and benefit.
Currently, 121 prescription drugs currently sold worldwide come from plant-derived sources. And while 25% of Western pharmaceuticals are derived from rain forest ingredients, less than 1% of these tropical trees and plants have been tested by scientists.
The U.S. National Cancer Institute has identified 3000 plants that are active against cancer cells. 70% of these plants are found in the rain forest. Twenty-five percent of the active ingredients in today’s cancer-fighting drugs come from organisms found only in the rain forest.
Vincristine, extracted from the rainforest plant, periwinkle, is one of the world’s most powerful anticancer drugs. It has dramatically increased the survival rate for acute childhood leukemia since its discovery.
In 1983, there were no U.S. pharmaceutical manufacturers involved in research programs to discover new drugs or cures from plants. Today, over 100 pharmaceutical companies and several branches of the US government, including giants like Merck and The National Cancer Institute, are engaged in plant research projects for possible drugs and cures for viruses, infections, cancer, and even AIDS.

Experts agree that by leaving the rainforests intact and harvesting it’s many nuts, fruits, oil-producing plants, and medicinal plants, the rainforest has more economic value than if they were cut down to make grazing land for cattle or for timber.
The latest statistics show that rainforest land converted to cattle operations yields the land owner $60 per acre and if timber is harvested, the land is worth $400 per acre. However, if these renewable and sustainable resources (nuts, fruits and essential oils) are harvested, the land will yield the land owner $2,400 per acre.
If managed properly, the rainforest can provide the world’s need for these natural resources on a perpetual basis.
Promoting the use of these sustainable and renewable sources could stop the destruction of the rainforests. By creating a new source of income harvesting the medicinal plants, fruits nuts, oil and other sustainable resources, the rain forests is be more valuable alive than cut and burned.
Sufficient demand of sustainable and ecologically harvested rain forest products is necessary for preservation efforts to succeed. Purchasing sustainable rain forest products can effect positive change by creating a market for these products while supporting the native people’s economy and provides the economic solution and alternative to cutting the forest just for the value of its timber.

The beauty, majesty, and timelessness of a primary rain forest are indescribable. It is impossible to capture on film, to describe in words, or to explain to those who have never had the awe-inspiring experience of standing in the heart of a primary rain forest.

Rain forests have evolved over millions of years to turn into the incredibly complex environments they are today. Rain forests represent a store of living and breathing renewable natural resources that for eons, by virtue of their richness in both animal and plant species, have contributed a wealth of resources for the survival and well-being of humankind. These resources have included basic food supplies, clothing, shelter, fuel, spices, industrial raw materials, and medicine for all those who have lived in the majesty of the forest. However, the inner dynamics of a tropical rain forest is an intricate and fragile system. Everything is so interdependent that upsetting one part can lead to unknown damage or even destruction of the whole. Sadly, it has taken only a century of human intervention to destroy what nature designed to last forever.

The scale of human pressures on ecosystems everywhere has increased enormously in the last few decades. Since 1980 the global economy has tripled in size and the world population has increased by 30 percent. Consumption of everything on the planet has risen- at a cost to our ecosystems. In 2001, The World Resources Institute estimated that the demand for rice, wheat, and corn is expected to grow by 40% by 2020, increasing irrigation water demands by 50% or more. They further reported that the demand for wood could double by the year 2050; unfortunately, it is still the tropical forests of the world that supply the bulk of the world’s demand for wood.

In 1950, about 15 percent of the Earth’s land surface was covered by rain forest. Today, more than half has already gone up in smoke. In fewer than fifty years, more than half of the world’s tropical rainforests have fallen victim to fire and the chain saw, and the rate of destruction is still accelerating. Unbelievably, more than 200,000 acres of rain forest are burned every day. That is more than 150 acres lost every minute of every day, and 78 million acres lost every year! More than 20 percent of the Amazon rain forest is already gone, and much more is severely threatened as the destruction continues. It is estimated that the Amazon alone is vanishing at a rate of 20,000 square miles a year. If nothing is done to curb this trend, the entire Amazon could well be gone within fifty years.

Massive deforestation brings with it many ugly consequences-air and water pollution, soil erosion, malaria epidemics, the release of carbon dioxide into the atmosphere, the eviction and decimation of indigenous Indian tribes, and the loss of biodiversity through extinction of plants and animals. Fewer rain forests mean less rain, less oxygen for us to breathe, and an increased threat from global warming.

But who is really to blame? Consider what we industrialized Americans have done to our own homeland. We converted 90 percent of North America’s virgin forests into firewood, shingles, furniture, railroad ties, and paper. Other industrialized countries have done no better. Malaysia, Indonesia, Brazil, and other tropical countries with rain forests are often branded as “environmental villains” of the world, mainly because of their reported levels of destruction of their rain forests. But despite the levels of deforestation, up to 60 percent of their territory is still covered by natural tropical forests. In fact, today, much of the pressures on their remaining rainforests comes from servicing the needs and markets for wood products in industrialized countries that have already depleted their own natural resources. Industrial countries would not be buying rain forest hardwoods and timber had we not cut down our own trees long ago, nor would poachers in the Amazon jungle be slaughtering jaguar, ocelot, caiman, and otter if we did not provide lucrative markets for their skins in Berlin, Paris, and Tokyo.

Why should the loss of tropical forests be of any concern to us in light of our own poor management of natural resources? The loss of tropical rain forests has a profound and devastating impact on the world because rain forests are so biologically diverse, more so than other ecosystems (e.g., temperate forests) on Earth.

Consider these facts:

A single pond in Brazil can sustain a greater variety of fish than is found in all of Europe’s rivers.
A 25-acre plot of rain forest in Borneo may contain more than 700 species of trees – a number equal to the total tree diversity of North America.
A single rain forest reserve in Peru is home to more species of birds than are found in the entire United States.
One single tree in Peru was found to harbor forty-three different species of ants – a total that approximates the entire number of ant species in the British Isles.
The number of species of fish in the Amazon exceeds the number found in the entire Atlantic Ocean.
The biodiversity of the tropical rain forest is so immense that less than 1 percent of its millions of species have been studied by scientists for their active constituents and their possible uses. When an acre of topical rain forest is lost, the impact on the number of plant and animal species lost and their possible uses is staggering. Scientists estimate that we are losing more than 137 species of plants and animals every single day because of rain forest deforestation.

Surprisingly, scientists have a better understanding of how many stars there are in the galaxy than they have of how many species there are on Earth. Estimates vary from 2 million to 100 million species, with a best estimate of somewhere near 10 million; only 1.4 million of these species have actually been named. Today, rain forests occupy only 2 percent of the entire Earth’s surface and 6 percent of the world’s land surface, yet these remaining lush rain forests support over half of our planet’s wild plants and trees and one-half of the world’s wildlife. Hundreds and thousands of these rain forest species are being extinguished before they have even been identified, much less catalogued and studied. The magnitude of this loss to the world was most poignantly described by Harvard’s Pulitzer Prize-winning biologist Edward O. Wilson over a decade ago:

“The worst thing that can happen during the 1980s is not energy depletion, economic collapses, limited nuclear war, or conquest by a totalitarian government. As terrible as these catastrophes would be for us, they can be repaired within a few generations. The one process ongoing in the 1980s that will take millions of years to correct is the loss of genetic and species diversity by the destruction of natural habitats. This is the folly that our descendants are least likely to forgive us for.”

Yet still the destruction continues. If deforestation continues at current rates, scientists estimate nearly 80 to 90 percent of tropical rain forest ecosystems will be destroyed by the year 2020. This destruction is the main force driving a species extinction rate unmatched in 65 million years.

Trees release oxygen when they use energy from sunlight to make glucose from carbon dioxide and water. Like all plants, trees also use oxygen when they split glucose back down to release energy to power their metabolisms. Averaged over a 24-hour period, they produce more oxygen than they use up; otherwise there would be no net gain in growth.

It takes six molecules of CO2 to produce one molecule of glucose by photosynthesis, and six molecules of oxygen are released as a by-product. A glucose molecule contains six carbon atoms, so that’s a net gain of one molecule of oxygen for every atom of carbon added to the tree. A mature sycamore tree might be around 12m tall and weigh two tonnes, including the roots and leaves. If it grows by five per cent each year, it will produce around 100kg of wood, of which 38kg will be carbon. Allowing for the relative molecular weights of oxygen and carbon, this equates to 100kg of oxygen per tree per year.

A human breathes about 9.5 tonnes of air in a year, but oxygen only makes up about 23 per cent of that air, by mass, and we only extract a little over a third of the oxygen from each breath. That works out to a total of about 740kg of oxygen per year. Which is, very roughly, seven or eight trees’ worth.

You've probably heard that trees produce oxygen, but have you ever wondered just how much oxygen one tree makes? The amount of oxygen produced by a tree depends on several factors, including its species, age, health, and surroundings. A tree produces a different amount of oxygen in summer compared to winter. So, there is no definitive value.

Here are some typical calculations:

"A mature leafy tree produces as much oxygen in a season as 10 people inhale in a year."

"A single mature tree can absorb carbon dioxide at a rate of 48 pounds per year and release enough oxygen back into the atmosphere to support two human beings."​

"One acre of trees annually consumes the amount of carbon dioxide equivalent to that produced by driving an average car for 26,000 miles. That same acre of trees also produces enough oxygen for 18 people to breathe for a year."​

 "A 100-foot tree, 18 inches diameter at its base, produces 6,000 pounds of oxygen."

 "On average, one tree produces nearly 260 pounds of oxygen each year. Two mature trees can provide enough oxygen for a family of four."

"Mean net annual oxygen production (after accounting for decomposition) per hectare of trees (100% tree canopy) offsets oxygen consumption of 19 people per year (8 people per acre of tree cover), but ranges from nine people per hectare of canopy cover (4 people/ac cover) in Minneapolis, Minnesota, to 28 people/ha cover (12 people/ac cover) in Calgary, Alberta."

Notes About Numbers
Note there are three ways to look at the amount of oxygen produced:

One type of calculation simply looks at the average amount of oxygen produced via photosynthesis.
A second calculation looks at net oxygen production, which is the amount made during photosynthesis minus the amount the tree uses.
A third calculation compares the net oxygen production in terms of gas available for humans to breathe.
 
It's also important to remember that trees not only release oxygen but also consume carbon dioxide. However, trees perform photosynthesis during daylight hours. At night, they use oxygen and release carbon dioxide.

In the above scenario, I really don't think that ever at any point of time it has been evaluated, what damage is being caused to the environment by deforestation in the wake of development.

Though everyone plant 100 trees, but when they are planted they are mere saplings and take years to grow. Thus, cannot replace the full grown trees which have average age of 25 years and above. Though all saplings are planted, can never replace the full grown tree. So stop taking such decisions which are against nature and in future will give nothing to the generations to come.

Being a responsible citizen, I stand for my nation and I am responsible to save the environment. Not just the environment of my nation but the planet too. Now, its your turn being prudent citizens, sign the petition so we can save the cutting of trees and as well we are not made to face the drastic changes of environment due to implementation of illogical decisions.

Namaskar!!