Prepare a brief speech on global warming. You have to deliver the speech in your class.
Prepare a brief speech on global warming. You have to deliver the speech in your class.
Other planets in our solar system are either extremely cold or really hot. It’s the only planet earth that has a climate which is mild enough to support life. This is because of the presence of a thin layer of naturally occurring greenhouse gases like carbon dioxide, methane gas, water vapor and nitrous oxide. These gases are part of our atmosphere. The atmosphere here plays the role of the glass pane like in the greenhouse. They let the sun’s rays inside but not all of it is reflected back. The greenhouse gases even facilitate the absorption of the heat thereby warming up the earth and not letting it become extremely cold like it otherwise should have been.
The Greenhouse Effect
Since the beginning of the 18th century, the concentration of these gases in the atmosphere has started rising gradually. Since then, CO2 levels have risen around 40%. And why is this happening? Different human activities, mainly industrial, have led to the production of these gases; the most common being carbon dioxide. The unnatural presence of increased greenhouse gases has led to a more pronounced greenhouse effect which has altered the temperature of the earth, leading to a phenomenon termed ‘Global Warming’.
Other planets in our solar system are either extremely cold or really hot. It’s the only planet earth that has a climate which is mild enough to support life. This is because of the presence of a thin layer of naturally occurring greenhouse gases like carbon dioxide, methane gas, water vapor and nitrous oxide. These gases are part of our atmosphere. The atmosphere here plays the role of the glass pane like in the greenhouse. They let the sun’s rays inside but not all of it is reflected back. The greenhouse gases even facilitate the absorption of the heat thereby warming up the earth and not letting it become extremely cold like it otherwise should have been.
The Greenhouse Effect
Since the beginning of the 18th century, the concentration of these gases in the atmosphere has started rising gradually. Since then, CO2 levels have risen around 40%. And why is this happening? Different human activities, mainly industrial, have led to the production of these gases; the most common being carbon dioxide. The unnatural presence of increased greenhouse gases has led to a more pronounced greenhouse effect which has altered the temperature of the earth, leading to a phenomenon termed ‘Global Warming’.
