Domino Effect is a chain reaction that occurs when a small change causes similar change nearby, which then causes another similar change and so on. The final outcome may seem that nothing related to that small cause.
Climate change is one of those examples. In the video, it gives us some examples that show what is actually happened when the weather increase 1 degree Fahrenheit. In Alaska, the population of caribou decreases about sixty thousand within several years. The video shows the chain reaction that causes this: increasing the temperature lead to increase the number of mosquito which is threading caribous’ live. That force caribous to go up to the higher attitude, but at the same time, which is less food. Increasing temperature also leads to increase rain snow. During winter, caribous had to work a lot harder to get food because they had to dig deeper in the snow. Rain on the ground sometimes freeze, and turned into ice. Ice was so hard that it is impossible for the caribous to break and get what the grass they need underneath it.
Climate change not just creates a chain reaction locally, but globally. At the second part of the video, it shows that a lake drawn in Africa can cause increasing number children asthma in Caribbean and dying of sea fan around the coast of North America, which is thousands of miles away from Africa.
One degree Fahrenheit may seem to be not a big deal. However, the effect caused by that one degree is enormous, which we may never think of.
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