Global Warming It is summer now, so hot outside. The temperature in most places in the USA is above 35°C but twenty years ago, the temperature couldn’t so high. In some areas, we can cook outside on the ground and stop sighs are sun spent. Why the weather becomes more and more hot? How can we prevent the temperature become higher and higher? It is a big question for all people the entire world.

Global warming is continuing rise in the average temperature of earth. Since the early 20th century, the temperature of the global air and sea surface increase 0.8°C. Since 1980, about two-thirds occurred. Climate has changed when they received different sunlight because of the atmosphere and sun energy changed. But there is another force influence the earth change is human.

“One of the biggest issues facing us right now is global warming. Its effects on animals and on agriculture are indeed frightening, and the effects on the human population are even scarier.The facts about global warming are often debated in politics and the media, but, unfortunately, even if we disagree about the causes, global warming effects are real, global, and measurable. The causes are mainly from us, the human race, and the effects on us will be severe.”Jun 7th, 2009 by Derek Markham.

It means Global warming has many reasons. The first one is Carbon. It is increasing the chance of flood and drought. We like burning coal to make electric and release a lot of carbon into atmosphere. In the USA, about 40% carbons come from electricity production and burning coal for electric industry. There are many electric goods flood into the market but we don’t find and alternative source. We are highly depending on burning coal for electricity. Today, more and more people use cars as transport, in the USA, each family has at least one car. It means we are increasing use fossil fuels for transportation and manufacturing. The second reason is deforestation. The base reason is we need to use forests for fuel. But we consumption for wood and paper product, we free range husbandry leads forests remove. Deforestation releases a lot of carbon. When plants die, carbon will go back to the atmosphere. The third one is increase in usage of chemical fertilizers on croplands. In the 20th century, the usage of chemical fertilizers increased a lot.

“The majority of effects will be devastating to human and animal populations. An insecure food supply, increased frequency and intensity of storms, and rapidly rising sea levels are just a handful of the possible effects you will see in coming years. But it isn’t too late. You can even take action right now to help stop global warming!” from article What are the effects of global warming on earth.

As we know, global warming will have many effects for the earth and our lives. For earth, global warming not occurs evenly all over the world, much more change of temperature in the Arctic and Antarctic. More and more ice becomes water. For our lives, global warming leads to unstable agriculture and economic. You need to pay higher for food and many people die because they can’t afford the food. Climate change makes our market unstable and lower efficient, so food become much more expensive. Effects on animals are seriously. Polar bear can’t live because ice becomes less, the flooding of coastal estuaries by rising sea levels affect animals breed. Many species will be wiped out if global warming continues. They will loss habitat and food: melting the glaciers, high rate of evaporation, higher temperatures, frequent and severe droughts, reduced rainfall, and lower nitrogen content in forage