Global Warming- Greenhouse gases

Global Warming- Greenhouse Gases
Global has been defined by Wikipedia.org as ‘the increase in the average temperature of the Earth’s near-surface air and oceans since the mid-20th century and its projected continuation. Indeed it is obvious that we have been informed or know about this topic. The topic has been such a controversy in the contemporary world that it has sparked many global projects to stop the supposed ‘End of the Earth’.
The temperature increase had been greatly credited to the increasing concentration of greenhouse gases. These are all because of human activities like burning of fossil fuels and deforestation. These activities have been increasing since the Industrial Revolution, and are becoming more of a concern during the 21th century.
Today I will be discussing more about greenhouse gases and their impact on global warming.
Greenhouse gases are gases are gases in an atmosphere that absorb and emit radiation within the thermal infrared range. This means the greenhouse gases will take in the heat and emit the heat around a certain range. The greenhouse gases can be important to Earth, as without them, the temperature of the Earth’s surface would be about 33 degrees Celsius lower. These gases in our Earth’s atmosphere include water vapour, carbon dioxide, methane, nitrous oxide and ozone. The gas carbon dioxide has increased significantly since the Industrial Revolution and burning of fossil fuels.
With the presence of these gases, the Greenhouse Effect is subsequently created. The radiation of sun will first approach Earth. Most of the radiation passes through the atmosphere and is absorbed by the Earth surface, and some is reflected by the Atmosphere and Earth’s surface. Upon reaching Earth, the radiation is converted into heat energy, causing the emission of infrared radiation back to the atmosphere. Some of the infrared radiation is then absorbed by the greenhouse gases and re-emitted into the atmosphere.
This is when the increase of Greenhouse Gases takes a big stand. When the amount of Greenhouse Gases increase, more radiation, or heat, simply, the amount of heat trapped and retained will be higher. The increase can pose harm to Earth. For example, the melting of the Glaciers that increase sea level.

Reflection

I chose to do this topic as I felt it was very important and crucial for people to understand what greenhouse gases were. As the controversy of global warming continues, it is important that we know what greenhouse gases are so that we humans can find the appropriate solution to put a stop to global warming.

In the end it is still our own lives that are affected by the greenhouse gases, and hence there is a strong neccesity to address this topic. I also want people to understand the concept of greenhouse effect and understand that their actions could well have grave consequences on their own lives.