Climate Change Concerns: Climate Change Concerns PowerPoint Presentation: Climate is usually defined as the “average weather” in a place. PowerPoint Presentation: It includes patterns of temperature, precipitation (rain or snow), humidity, wind and seasons PowerPoint Presentation: Climate patterns play a fundamental role in shaping natural ecosystems, and the human economies and cultures that depend on them. PowerPoint Presentation: Our climate is rapidly changing with disruptive impacts, and that change is progressing faster than any seen in the last 2,000 years. PowerPoint Presentation: But the climate we’ve come to expect is not what it used to be, because the past is no longer a reliable predictor of the future. PowerPoint Presentation: According to the report, Preparing for a Changing Climate , rising levels of carbon dioxide and other heat-trapping gases in the atmosphere have warmed the Earth and are causing wide-ranging impacts, including rising sea levels; melting snow and ice; more extreme heat events, fires and drought; and more extreme storms, rainfall and floods. PowerPoint Presentation: Scientists project that these trends will continue and in some cases accelerate, posing significant risks to human health, our forests, agriculture, freshwater supplies, coastlines, and other natural resources that are vital to country’s economy , environment, and our quality of life. PowerPoint Presentation: Because so many systems are tied to climate, a change in climate can affect many related aspects of where and how people, plants and animals live, such as food production, availability and use of water, and health risks.