Climate change or called "global warming", refers to the rise in average surface temperatures on Earth. Scientifics maintain that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air. The gases trap heat within the atmosphere, which can have a range of effects on ecosystems. But the climate change can really influence the tourism in a specific area? The goals of this study is to present on the first part the cause and effects of climate change, taking into consideration the Case of Sardinia. First of all, I have wanted to show the Sardinia from historical, geographical, socio-economic point of view and the problem with the tourism. This situation has a strong effect in Sardinia, its climate is changing on coastal areas, and in fact are increasing the appearance of extreme events related to weather, sea storms, increased wave energy, the action of winds, rising sea levels, decreasing trend in rainfall and with the consequence reduction of the contribution of river sediments to the beaches. Why have I wanted to talk about Sardinia? Because it is a region that has much to offer, but for many reasons hasn't found a solution. The main problem as well as of the effects of climate change is the relationship with the tourism in high season. The tourism is concentrated only in one period, in the summer, this may mean that tourists don't visit the center areas to discover a less popular side of the island, which is characterized by its landscape, cultural heritage and traditions. We need to convince the tourists that exists other type of tourism, explore new culture and the adventure. In this way, Sardinia it must give itself the chance to open the road at winter tourism, and exploit of the nature offers.