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Global warming



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  • 1. • What is Global Warming • Why is this warming bad?! • Impacts • What We Can Do
  • 2. What is Global Warming? Global Warming is the theory that we as humans are increasing greenhouse gases (the layer of gases that catches the sun’s rays and heats the earth) through industrialization causing more gases and increasing the amount of sunlight that gets caught and heats the Earth.
  • 3. General Viewpoint The general viewpoint is that global warming and pollution from CO2 emissions are adding to greenhouse gases so significantly that the Earth is warming up and will continue to warm.
  • 4. Why is this warming bad?! We believe that this increase in temperature will eventually cause the melting of the ice caps. This melting could increase the oceans height by up to 2 feet in only one century! This would mean many heavily populated costal cities would flood causing millions maybe billions of dollars and damage and the potential loss of life in these cities.
  • 5. Other Effects from Global Warming There are also other effects to global warming such as natural disasters have been increasing, disease have been spreading more rapidly, and animals have been found migrating towards the poles due to the increase in heat.
  • 6. Effects on Wetlands and Forests Over the last 5 decades, in areas of the Kenai NWR:  Open areas decreased by 34%  Wet areas decreased by 88% USFWS photo  Water and lakes decreased by 14% USFWS photo courtesy Ed Berg
  • 7. Disappearing & Shrinking Ponds Disappearance of Ponds since 1950’s Study Area % Decrease in Number of Ponds % Decrease in Area of Ponds Copper River Basin Minto Flats SGR Innoko Flats NWR Yukon Flats NWR 54 % 36 % 30 % 10 % 28 % 25 % 31 % 18 % Based on Inventory of 10,000 closed-basin ponds
  • 8. Ocean Acidification “The surface ocean currently absorbs about one-fourth of the CO2 emitted to the atmosphere from human activities.” Monaco Declaration 2008 Remains in the atmosphere (greenhouse gas) Dissolves in sea water CO2 + H20 HCO3- + H+ (ACID) Water becomes more acidic. CO2 CO2
  • 9. Facts The number of category 4 and 5 hurricanes have almost doubled in the last 30 years. The flow of ice from glaciers in Greenland has more than doubled in the past decade. At least 279 species of plants and animals are already responding to global warming, moving closer to the poles.
  • 10. Future Effects of Global Warming Deaths from global warming will double in just 25 years, to 300,000 people a year. Global sea levels could rise by more than 20 feet with the loss of shelf ice in Greenland and Antarctica, devastating costal areas worldwide. Heat waves will be more frequent and intense. Droughts and wildfires will occur more often. The Arctic Ocean could be ice free by 2050. More than a million species could be driven to extinction by 2050.
  • 11. What We Can Do  Use Wind Energy  Reduce CO2 Emission  Action is essential at every level  Individual  International  Plant & Save trees  Recycle the product
  • 12. Thank You !!!!