What is global warming? what are the causes and effects?

Global warming is a word that is being used widely all over the Universe. As the term suggests, it is just the warming up of the globe but the effects are too frightening. Let us know what global warming is , its causes and effects. The causes are divided into two: man-made and natural causes.

What is Global warming?

Global warming simply means change in the climate of the earth due to various natural and manmade factors. It is steady increase in temperature that affects the whole world. This is a global issue that is of great priority. It is an environmental challenge of the modern world. We humans are mostly responsible for this global warming.

It is defined as “an increase in the average temperature of the Earth’s atmosphere, especially a sustained increase great enough to cause changes in the global climate”; [Definition courtesy :www.dictionary.com] we know now that this has been happening since at least the last 100 years.

Global warming image

A change or an increase in one degree is also considered as global warming. These have a negative effect on the earth’s atmosphere. The climate of the earth changes altogether inviting a lot of natural calamities like hurricanes, earthquakes and storms. The entire ecosystem gets disrupted owing to loss in biodiversity. The greenhouse gases as a result of human activity are mostly responsible foe the sudden change in temperature. All these gases like carbon dioxide, methane, nitrous oxide and so on act as a blanket in the atmosphere that traps heat and radiates it back. This in turn alters the climate globally.


Manmade causes of global warming are as under


Natural causes for global warming-


Global warming effects image


Even we have summarized the effects of global warming above, but it is being discussed very deeply in yet another head. It is being observed that the global warming has become so remarkable and threatening from the last two decades for the environment.