The Role of Human Factor in Climate Change and the Assessment of its Effects.

The climatic changes are new discussiones that nowdays are debated. Human activities and first of all the burning of fossil fuels have increased the greenhouse gas content of the earth’s atmosphere significantly in recent years. Carbon dioxide is one of the most important greenhouse gases, that traps heat near the planet’s surface.The greenhouse effect is not in dispute but it lies at the heart of the study of global climate change.There is no doubt that increases in the atmospheric concentration of carbon dioxide and other greenhouse gases strengthen the greenhouse effect and contribute to global warming. This study looks at what we know and do not know about climate change feedbacks and seeks to identify the feedback processes most in need of improved understanding.