Deforestation is a removal of forest lands and related ecosystems for non-forest use such as farming, ranching and urban use.Tropical rainforests are the place where deforestation occurs the most. According to Food and Agriculture Organization of the United Nations (FAO), Brazil, Indonesia and Myanmar are the top three countries where deforestation is concentrated mainly (http://eschooltoday.com/forests/what-is-deforestation.html). From this, it is able to determine that countries which form large proportion of deforestation are developing countries where make the majority of their profit from selling trees. Then, should people permit those countries to keep removing trees? Answer of this question would be very important because deforestation is becoming a serious problem and need so action. So, To give an agreeable answer, evaluation of causes, effects and solutions of deforestation is needed.Deforestation is being useful for different ways. Firstly, agricultural expansion is a cause of deforestation. According to the United Nations Framework Convention on Climate Change (UNFCCC) secretariat, the direct cause of deforestation is agriculture(https://en.wikipedia.org/wiki/Deforestation). As global demand for commodity increases, spaces for agriculture is required. Although, efforts of replenishment of trees are made, there are still more trees cutting down than replanted. In other words, forests are not sustained. Secondly, forest has been clearing for livestock ranching. It is because ranching require large areas. Ranching is the biggest cause of Brazil. Brazil has lost an area of forest that is three-fourths the size of Texas and approximately 80 percent of deforested area after becoming a top exporter of beef (www.greenpeace.org.uk/how-cattle-ranching-chewing-amazon-rainforest-20090129/). Lastly, deforestation get affected by infrastructure expansion. People remove large forest areas to make a room for lots of factories and housing development. Since the industrial age, a number of factories and houses are continuously being constructed. In this case, forest lands are being destroyed by communities and individuals who want personal gains.There are serious effects of deforestation on environment. Firstly, it pollutes atmosphere and consequently causes global warming. The decreasing number of trees increases the amount of carbon dioxide in the atmosphere. It is because plants remove carbon in the form of carbon dioxide from the atmosphere during photosynthesis. Also the incineration and burning of forest plants releases huge amount of CO2. Furthermore, the layer produced by carbon dioxide traps radiation from the sun. The radiation converts to heat which causes global warming, which is better known as the greenhouse effect. Tropical deforestation is responsible for nearly 20 percent of world greenhouse gas emissions now. Secondly, animals and plants lose their habitat due to deforestation. 70 percent of world’s animals and plants lost their homes and animals are becoming endangered. This naturally reduce biodiversity of environment. According to research in Brazil, microbial community which is involved in the recycling of nutrients and the production of clean water and the removal of pollutants is also removed during deforestation. 50,000 species are lost every year and scientist found out that the speed of declining forests is similar to the speed of declining species diversity (https://en.wikipedia.org/wiki/Deforestation).There are two possible solutions that can prevent facing serious consequence of deforestation. Firstly, government could make it illegal to cut down trees. Forests are not safe these days and need some action that can stop people wasting it. Law is the one that changes people. Governments who should take care of its own countries should be responsible of taking care of its forests and trees and this goes to every single countries in this world. It is true that there are lots of harmful effects of deforestation on environment which would result in affecting humans. However, some people disagree with this solutions with reasons. They say that economy makes world and without trees, quite many countries would face problem on their economy and affect the whole world. In addition, goods that are made with woods are daily necessity and actually the number of those goods made fit perfectly for everyone in this world (www.debate.org/opinions/should-it-be-illegal-to-cut-down-trees). This means that trees are being used for some good reasons and government can not just prohibit it. The second solution is to make public be compelled by law of planting trees. The number of trees cutted down must be replaced by planting young-trees. So, government could take action of forcing public to plant trees on certain days (www.conserve-energy-future.com/causes-effects-solutions-of-deforestation.php). However, this can not build a forest that most of public do not live near places forests. Consequently, the number of trees would definitely increases but would not be giving habitat to animals and plants in the forest and the loss of diversity would continue. The similarity between these two solutions is that government is the key point of changing the public and world. This is because people who are mainly causing deforestation are wanting for personal gains and their wants would not stop in one day..To conclude everything, there are the reasons why people cut down trees. But, at the same time, people can not just let the world to keep removing forests since there are very dangerous effects that would affect the environment and humans. Although, government can not just make a decision and change the law immediately, publics should be aware of the fact that they are all in danger and they will be the one who can save themselves. This will change their minds and actions. To give awareness to them, more education is needed. The number of campaign and a short lecture that can show the reality should be more than now. No one should be relaxed and satisfied with the small activities that promotes to save trees nowadays because it actually did not make any further change.