What is Global Warming?
Let us discuss some facts about global warming for children. Our planet Earth was formed billions of years ago. Just like a glass greenhouse traps the sun’s energy inside to help plants grow, Earth too is a natural greenhouse. There are gases like carbon dioxide, water vapor, and so forth in the atmosphere of the Earth, and these are called greenhouse gases.
When sunlight enters Earth’s atmosphere, it reaches land, water and the surface. A part of it is absorbed and the remaining portion is sent back, but the greenhouse gases do not allow all the sun’s energy to go back. They trap the energy and light of the sun. This helps keep the planet warm enough to live. If this natural greenhouse effect had not been there, Earth would be very cold, and the average temperature of the planet would be just five degreLes Fahrenheit.
With the growing population, rising number of industries and growing number of cars and vehicles, however, the level of carbon dioxide and other greenhouse gases like methane, nitrous oxide, and others has increased in the atmosphere. Scientists believe the level of carbon dioxide has increased up to 25 percent from the levels of hundreds of years ago. This increase is causing more of the sun’s energy to be trapped inside the earth’s atmosphere. The result is our planet is becoming warmer. This phenomenon of the planet becoming warmer and warmer due to excessive greenhouse effect is known as global warming.