Scientists are of the opinion that global warming is their biggest concern when it comes to the protection of the Earth. The temperature of the globe is rising at an alarming rate and continuously warming the globe. The surface temperature of the Earth has risen by one degree Fahrenheit in the last century. The degree of global warming has increased in the last 30 years.
An expert on clean energy speaks
Environmental specialist Jonathan Schrag says that global warming is caused by the activities of humans. There is tremendous proof and evidence in this regard. Their acitivities have been solely responsible in changing the chemical composition of the Earth. This has led to the accumulation of Greenhouse gases that result in global warming.
The Greenhouse Effect and how does it work
He further goes on to explain how the Greenhouse Effect works. He says the sun emits ultraviolet rays and they travel through space to the Earth. The rays hit the planet and some of the sunlight is converted into heat energy. This is known as infrared light.This heat encloses the land and the air. They become hot. The infrared rays are released again into the atmosphere and they are called the Greenhouse gases. These gases absorb the light once again and they are resent back to the surface of the planet to make it warm again.
In a report released by the National Academy of Sciences some years ago, the surface temperature of the Earth has increased by one degree Fahrenheit in the last century. The rate of global warming is accelerating day by day. The last 50 years has been worse and the cause of this global warming has been due to the activities of human beings. The chemicals that have invaded the Earth because of this phenomenon are carbon dioxide, nitrous oxide and methane. The gases are trapped and more heat is produced. The scientists are yet to knoe how the Earth will respond to this phenomenon in the near future – they are uncertain on how the greenhouse gases will affect climate change, he says.
An insight into the greenhouse gases
Carbon dioxide and methane are the natural greenhouse gases that occur. With the help of them, the Earth gives human beings the correct temperature for living. Unfortunately, human beings are inconsiderate. They are worsening the process of global warming and creating a dangerous future. The intensity of greenhouse gases is increasing and the rapid growth of technology is the primary cause of this. Factories are emitting harmful gases into the atmosphere. They are methane, nitrous oxide and carbon dioxide. Alongside there are substances that deplete the ozone layer- they are known as CFCs- Hydro fluorocarbons, per fluorocarbons and chlorofluro carbons.
Jonathan Schrag says that the greenhouse effect and its harmful impact on the earth does not end here. It is making a large contribution to environmental pollution. It is gradually affecting the health of the people. The seasons are being affected and organisms are facing hardships when it comes to existence. Most of them are already on the brink of extinct, he says.