What If There Were No Trees On Earth.

It's worst, but it's one we should think about, considering how dependent humans are on trees for survival. Life could not exist on Earth without trees because they produce most of the oxygen that humans and wildlife breathe. Trees absorb carbon dioxide from the atmosphere and release oxygen using the process of photosynthesis. There would also be no rain without trees since trees absorb water from the soil and release it through evapotranspiration.Trees purify the air by absorbing pollutants such as sulfur dioxide and nitrogen dioxide, reducing pollution. Trees also help prevent topsoil erosion because they break the force of wind and rain on soil, their roots bind the soil, and their decayed, falling leaves are absorbed by the earth and enrich the soil. Trees conserve rainwater and reduce water runoff and sediment deposit after storms. Trees can also act as noise filters.

Trees help support the environment, and an environmental detriment that will be noticed if there are no more trees, is the simple fact that roots hold soil together. When there is rain or other precipitation, the roots from trees hold the soil together, specifically the fertile topsoil that helps support more plant growth, so that the soil does not wash away with the rainwater. If the soil did wash away, as stated before, it would be the fertile soil that helps support other plant growth, so the washing away of this soil will cause whatever area it is in to not be able to support plant life. With no more tree roots holding the soil together, the area will most likely become a desert.

Trees are very much beneficial for us in many ways.

• Trees combat climate change.

Excess carbon dioxide (CO2) caused by many factors is a building up in our atmosphere and contributing to climate change. Trees absorb CO2, removing and storing the carbon while releasing the oxygen back into the air.

• Trees clean the air.

Trees absorb odors and pollutant gasses (nitrogen oxides, ammonia, sulfur dioxide and ozone) and filter particulates out of the air by trapping them on their leaves and bark.

• Trees provide oxygen.

In one year an acre of mature trees can provide enough oxygen for 18 people.

• Trees conserve energy.

Three trees placed strategically around a single-family home can cut summer air conditioning needs by up to 50 percent. By reducing the energy demand for cooling our houses, we reduce carbon dioxide and other pollution emissions from power plants.

• Trees help prevent water pollution.

Trees reduce runoff by breaking rainfall thus allowing the water to flow down the trunk and into the earth below the tree. This prevents stormwater from carrying pollutants to the ocean.

• Trees help prevent soil erosion.

On hillsides or stream slopes, trees slow runoff and hold soil in place.

• Trees shield children from ultra-violet rays.

Skin cancer is the most common form of cancer in the United States. Trees reduce UV-B exposure by about 50 percent, thus providing protection to children on school campuses and playgrounds - where children spend hours outdoors.

• Trees provide food.

An apple tree can yield up to 15-20 bushels of fruit per year and can be planted on the tiniest urban lot. Aside from fruit for humans, trees provide food for birds and wildlife.

• Trees mark the seasons.

Is it winter, spring, summer or fall? Look at the trees.

• Trees add unity.

Trees as landmarks can give a neighborhood a new identity and encourage civic pride.

• Trees provide a canopy and habitat for wildlife.

Sycamore and oak are among the many urban species that provide excellent urban homes for birds, bees, possums and squirrels.

Don’t make Trees rare, keep them with care.

Without plants there would be no life. Without plant any form of life outside of the Earth's oceans would be nearly impossible, especially for humans.