According to professor Jonathan Baron, "It might be argued that we should have known about global warming since 1896, when Svante Arrhenius first proposed the idea and then provided estimates that agree fairly well with modern computer models," (140). This shows that people were careless about this problem since the beginning of the new industrial age. When the first man showed the theory of global warming, they just ignored him. Some often refrains by saying global warming is a natural cycle of the earth. Some people feel regretful, and concerned; some are just careless. Distinctive perspectives yield diverse thinking on this issue. Throughout the many years, researchers have examined Earth's atmosphere to find the causes and effect of the global warming and looking for the solution to decrease its causes. Whether we ignore this topic, global warming issue is a major concern to government, schools and media globally. Global warming has caught the attention of many in recent years because temperature fluctuation has risen and scientists have proved it by studying the temperatures over the years, but some disagree and claim that greenhouse gases created by the humans are minimal. Although they believe that this climate change is not a big deal and caused by blaming nature, human activity is the major cause of current weather changes.
Assuming that most people love their planet, numerous environmentalists post websites, compose expositions, and give talks to the society about the future risk their planet can face. Ecologists hope to educate people to take steps for the future of this world. According to the scientists, global warming is a big problem and requires very close attention to the patterns over many years. According to the article "Air Pollution" from national geographic society, human activities in the past 150 years such as emissions of cars, planes, power plants by burning of fossil fuels have increased carbon-dioxide gas level higher than they have been in the past thousands of years in the atmosphere.