Global Warming

Global Warming is when the average temperature of the earth's atmosphere increases from what it is. It began in the late 19th century and the temperature is still rising. Global warming is caused by greenhouse gases such as carbon dioxide from factories and human wastes. Even though the temperature is rising slowly and the changes are not very obvious, there are living animals suffering from it such as polar bears.

In the hot desert, the increase in temperature won't be seen that easily. Nevertheless, in the freezing cold arctic, the effects of global warming can be seen very easily, because if the temperature rises slightly above the melting point, ice and snow will melt. Every polar bear has two layers of fur to keep them warm under -50˚C, and the ears tail can keep the heat in its body in case it escapes. Once the temperature starts to rise, polar bears will start to feel so hot, they have less space to roll on the ice or snow because they are melting. Therefore that is one of the reason polar bears are dying.

Another reason the polar bears are dying out is starvation. Their main food source is seals. When seals swim, they come to the surface to breathe and hole their breathe to dive in the water. Seals always find holes on the ocean ice in order for them to breathe. If the global warming affects the temperature increases past the melting point, the ocean ice will be disappeared, which means there will be plenty of space for seals to breathe. The way polar bears hunt seals is to stand next to the hole and waits for the seals to come up and breathe. Nowadays, most of the ice is gone and seals are breathing wherever they want, which made hunting harder for polar bears. When a polar bear spots a seal, it will go there to catch the seal and although polar bears can swim fast, the seals breathe faster, so when the polar bear arrive the destination, the seal will be diving back into the ocean.

The solution is we have to reduce global warming by reusing, reducing and recycling plastic objects like water bottle. Plastic is main source of producing carbon dioxide, one of the greenhouse gases. If I am the only one who is doing it, is not enough. Therefore, I want everyone who has read this blog post to do it too. The more people the more energy there is. One of the small thing we need to do is to use your own water bottle and use your own paper or cloth bag in order to reduce carbon dioxide in the air.


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