Why plant trees

Tree-Nation tree icon

Trees are key pillars of the world for both humans and the environment. They benefit us by purifying water, air and creating better social conditions. They benefit the environment by providing homes for various forms of life, cooling our climate and improving our soil.

Benefits of planting trees for humans

Water

Purification

Trees purify water and slow down rain by filtering it with their roots. This process prevents erosion and reduces the risk of saturation and flooding.

Water Supply

Roughly 1/3 of the world’s largest cities rely on protected forest areas for a large proportion of their drinking water. This includes cities such as New York and Singapore.

Air

Oxygen Production

Trees and forests are often referred to as the ‘lungs of the planet’ for a very simple reason: they produce oxygen. It is estimated that 1 acre of trees can provide the oxygen requirements of 12 people for a year.

Absorb Harmful Gases

In addition to absorbing CO2, trees also absorb harmful pollutant gases such as sulphur dioxide, ozone, ammonia, carbon monoxide and nitrogen oxides.

Cooling

Trees cool the surrounding air by providing shade and by a process called transpiration cooling. This is where trees release water droplets from their leaves that cool the surrounding area when they evaporate.

Social Benefits

Medical Properties

We derive many medicines from tree bark, leaves and flowers of different species. These are usually used in herbal medicine, but many compounds in pharmaceutical industries are based on those originally extracted from trees.

Developing World

Many of the world’s extreme poor live close to a forested area. Food, drink and equipment obtained from these forests can account for up to 28% of total household earnings in some tropical and subtropical regions.

Mental Health

Trees and nature have been shown to improve mental health and cognition in both healthy individuals and those suffering from mental illness.

Benefits of planting trees for the environment

Fauna

Homes

Forests support approximately 80% of the world’s terrestrial biodiversity. This ranges from small invertebrates to large mammals.

Insects

Trees also support large numbers of insect populations, with some trees such as Birch and willow supporting upwards of 300 species of insect.

Prevents Extinction

As many as 100 species a day could go extinct from the loss of closed tropical rainforests.

Climate

Carbon Capture

Natural forests capture CO2, acting as carbon sinks. Every year, forests and trees absorb the equivalent of 2 billion tonnes of CO2, roughly 1/3 of all CO2 released from the burning of fossil fuels.

Carbon Storage

Deforestation enhances climate change by releasing stores of CO2. Roughly 18% of global emissions comes from deforestation (5-10 GtCO2e) which is more than the world’s entire transport sector.

Soil

Protection

Trees make soil less vulnerable to erosion. The tree canopy also provides protection for the soil underneath.

Nutrient Recycling

Tree detritus (often in the form of fallen leaves) enables nutrient recycling between the trees and soil.

Soil Structure

Tree roots both loosen the topsoil and increase the porosity in the subsoil. Also, the reliable source of carbon from perennial trees benefits the microorganism in the soil which binds the soil particles together improving structure.

Keep learning about the importance of trees

We believe knowledge is essential to understand the climate crisis at hand. Good decisions can only come from a clear understanding and sharp data. This lead us to create our #EcoEducation program. Discover the program’s first content series.

The Challenge

Discover why it’s urgent to plant trees.

#Forests Facts

The status of the world and climate through visual facts.

#Carbon Catchers

In-depth analysis of where and how we emit CO2.