Human Impact Process Questions 1. Name 4 ways we as humans impact the environment. 2. How do we impact the environment in a positive way? 3. How does global warming affect the planet? 4. What are greenhouse gasses and what are their effects? Answers 1. 2. Overpopulation, pollution, burning fossil fuels, and deforestation. Recycling, Establishing wildlife preserves and parks, Creating green open space laws, Doing reforestation, Creating environmental regulations. 3. Oceans-Global warming can affect sea levels, coastlines, ocean acidification, ocean currents, seawater, sea surface temperatures,[ tides, the sea floor, weather, and trigger several changes in ocean chemistry which can affect species and biodiversity. ; all of these affect the functioning of a society. Ocean warming. The ocean absorbs most of the excess heat from greenhouse gas emissions, leading to rising ocean temperatures. Increasing ocean temperatures affect marine species and ecosystems. Rising temperatures are melting the glaciers and ice caps. This causes sea levels to rise, Global sea levels are rising 0.13 inches (3.2 millimeters) a year. Rising temperatures are affecting wildlife and their habitats. Example-Polar bears are loosing their habbitat. Habbitat loss is causing species to migrate in search of food. Some species that thive in warmer temperatures are increasing in population and having a negative affect on ecosystems. Example-Booming populations of bark beetles that feed on spruce and pine trees, for example, have devastated millions of forested acres in the U.S. Hurricanes and other storms are likely to become stronger. Floods and droughts will become more common. Answers (Cont’d) 4. Gases in the air that trap energy from the Sun. These heat-trapping gases are called greenhouse gases. The most common greenhouse gases are water vapor, carbon dioxide, and methane. Others include carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulphur hexafluoride. Greenhouse gases like carbon dioxide (CO2), nitrous oxide (N2O), and methane (CH4), trap heat in the atmosphere. With higher-than-natural concentrations, they lead to unnatural warming.