ConservationEcologyNews & Opinion

Trees Are Nature’s Lungs

Trees are truly lungs of nature, sustaining life for all

Trees play a very important role in keeping this planet healthy. The health of humans, animals, and plants itself relieve upon trees. These help in synthesizing medicines, food, shelter, and also have aesthetic value for organisms. On the basis of these benefits, we call trees the lungs of nature. Let’s explore why trees are nature’s lungs.

The term “Tree”

The general name for trees, herbs, and shrubs plants. A tree is any type of plant that is primarily perennial. Perennial plants are those which live for more than two years. However, the word tree is in wide use and mean all plants and trees. Another reason is that trees yield timber and hardwood while plants cannot do the same.


According to the ancient Greek classification, plants are classified into trees, herbs, shrubs, and vines. This classification was valid for about 1000 years.

More recently, modern classification tries to classify plants on the basis of cytology, ecology, behavior, genetics, and evolutionary lineages. However, morphology like previous has its own vital place. Plants may have seeds or may also be seedless. Moreover, higher plants have specialized transport systems like xylem and phloem tissues. Lower plants have no special transport system, rely on diffusion across membranes.

Another classification of plants is the presence or absence of flowers. Plants bearing flowers are called flowering plants and reproduce mainly sexually. Both types of reproduction viz. sexual and asexual do exist. They may pollinate within the same plant; we call it self-pollination. They also have cross-pollination which exists between flowers of different plants.

Angiosperms and gymnosperms are the highest categories of plants.

Why trees are nature’s lungs

We all understand it clearly that our whole energy depends upon oxygen. This oxygen separates energy from the glucose molecules. Not only for us but for the whole living world. All forms of life directly or indirectly depend upon photosynthesis. Photosynthesis yields energy-rich molecule glucose and oxygen. Therefore, we are true in our claim to call trees nature’s lungs.

Annually, millions of tons of oxygen are produced by plants worldwide. Only the Amazon Rain Forest yields about 20% of the whole oxygen of world. It estimates a great numerical value.

Some other benefits

Besides its great benefit of oxygen, plants provide a number of benefits. Plants provide habitat for animals especially birds. Plants in the form of trees provide furniture, fuel, shelter, and medicines. Trees are helpful in keeping the street temperature at a lower magnitude. Trees help to avoid water pollution and soil erosion. These provide aesthetic value and are a way of recreation for people of all ages.

What we can do?

From the above discussion, it is clear that life wouldn’t be able to exist if oxygen goes out. Therefore, it is our responsibility to save trees. A normal healthy human consumes about 550L of oxygen per day. Now, this is a huge amount of oxygen yet few trees are unable to produce it.

Planting trees is very much essential for our survival. We shouldn’t focus on wasting money on flags, badges, and other waste-producing tools. On religion, freedom, and other cultural days, we should plant trees for our future. I hope we will not waste our money on these things. I hope we will be able to make trees a real lung of the earth for our healthy future. Trees; Nature’s Lungs in true.


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Sohail Anjum

Sohail Anjum completed his undergraduate degree in Zoology from University of Malakand in September 2019. He is a young researcher in Ecology. He has also worked with IUCN as a Reviewer of Proposals for IUCN Congress 2020.

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