1. Human Impact on the Environment View the following images Explain briefly what relationship is being demonstrated between humans and their environment

2. Industry and Combustion

3. Industrial emissions include Sulfides and Nitrides that mix with moisture in the atmosphere and return as acid precipitation. Combustion, burning of fossil fuels produces greenhouses gasses, increased combustion from industry and vehicles as well as agriculture has lead to an increase of these gasses in the atmosphere and ocean –In the atmosphere it has increased the planets greenhouse effect, leading to global climate change –In the ocean it has lead to acidification and a loss of species, especially coral and zooplankton

4. Logging and Mining

5. Logging and mining Lead to destruction of habitats Loss of biodiversity Erosion, loss of nutrients in top soil Deforestation has actually lead to drought in some areas because it interrupts the water cycle.

6. Wetland and Reef Habitats

7. Wetlands and Reef habitats As the Human population grows we take up more space and use more resources. Wetlands are being drained for urban expansion and the resources are being used up and habitats destroyed Coral Reefs are being destroyed to make way for shipping lanes and recreation vehicles. Reefs and their diverse species of coral and fish are being exploited and stress leads to reduced reproduction and possible extinction.

8. Endangered Species Fishing and Construction

9. Endangered Species due to overfishing and construction The Human population is expanding and more people need more food and more space. This means exploiting our oceans and lakes, overfishing leads to unhealthy aquatic ecosystems Construction means using resources and destruction of habitat, which leads to loss of biodiversity

10. Land fills, Oil rigs and pipelines

11. Human Population

12. Water and Agriculture

13. Water and agriculture Pesticides, like DDT, accumulate in ecosystems and magnify in the body tissues of the consumers. 1970 the US banded the use of DDT because raptors like the Bald Eagle were declining. Research showed high levels of DDT in the body had weakened the egg shell and prevented the Eagle from reproducing.

14. Water and agriculture Fertilizers are also a problem When excess nutrients like Nitrogen and Phosphorous leach into the ground they runoff into the water systems. This fertilizes the water and causes an algal bloom. This blocks out the sun and clogs the water way. The algae dies and decomposes. Decomposition depletes the oxygen from the water and fish die.

15. Important terms: Human Impact Ozone depletion, increase in UV radiation Buildup of Greenhouse gasses causes Global Warming and Climate shift Bioaccumulation in top predators reaches toxic levels Deforestation equals loss of natural habitat Invasive species leading to loss of Native Species Pollution, smog, acid rain

16. Common Pollution Sulfur dioxides and Nitrogen oxides emissions from combustion create acid rain and ground level ozone - smog Ground level ozone created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC) in the presence of sunlight. Particulate matter the sum of all solid and liquid particles in the air PCBs Polychlorinated biphenyls, a persistent organic pollutant found in electrical insulation and coolants. VOCs: Volatile Organic Compounds, indoor pollutants.