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Global Warming

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Kimberley Cutter

on 28 May 2013

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Transcript of Global Warming

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli By: Kimberley Cutter Global Warming What is global warming? Global warming is the rise in temperatures and sea levels. What does global warming affect? Global warming is the reason the ice caps are melting down and disappearing. Water Vap r Other Causes of Global Warming Global warming can cause certain plants and animals to go extinct. Because of global warming there is a greater risk of extreme weather. Who's fault is it? Global warning is told to be caused by humans. Which does make sense. We create more carbon dioxide by burning fossil fuels to power our vehicles and we create carbon dioxide in factories. Spray cans and the construction of buildings all create carbon dioxide. Global warming is mostly carbon dioxides fault, and carbon dioxide is humans fault. So, there you go, global warming is technically our fault. Greenhouse Gas It may not seem like it, but water vapor is in fact a greenhouse gas. Greenhouse gas is a gas in the atmosphere that absorbs and emits radiation within the thermal infrared range. A gas that contributes to the greenhouse effect by absorbing infrared radiation. The Greenhouse Effect What global warming is like for Earth; being trapped in a big greenhouse letting little to no heat out. The greenhouse effect is like locking the Earth in a big greenhouse where heat can't get out. Water vapor is the most abundant greenhouse gas in the atmosphere. As a greenhouse gas, the higher concentration of water vapor is then able to absorb more thermal IR energy radiation from Earth, further warming the atmosphere. Carbon monoxide, chlorofluorocarbons, nitrous oxide, and methane are all causes of global warming. Carbon Monoxide? A colorless, odorless, toxic flammable gas. Produced by incomplete burning of various fuels including: wood, charcoal, oil, kerosene, propane, and natural gas Chlorofluorocarbons? An organic compound that contains carbon, chlorine, and fluorine, produced as a volatile derivative of methane and ethane. Has been banned since 1996 because they destroy the ozone layer. Nitrous Oxide? Methane? Commonly known as laughing gas. A chemical compound with the formula N2O An oxide of nitrogen A colorless, odorless gas with a wide distribution to nature Why Higher Sea Levels? If you think about it higher sea levels makes sense. The high temperatures are melting the glaciers. Glaciers are basically large chunks of ice. Ice is water. All the melted ice (water) has to go somewhere, so it causes the sea levels to gradually rise. More and more glaciers are melting so sea levels will continue to increase. Not toxic when exhaled, but can produce suffocation by reducing the concentration of oxygen inhaled. Weather Global warming is causing effect on weather patterns. More powerful and dangerous hurricanes. Droughts Wildfires Intense rain Health Global warming is causing effects on health Deadly heat waves (causes heat stroke) Bad air Allergies Asthma Infectious diseases Food and waterborne illness breakouts Produced by cows. Is 23 times more powerful than carbon dioxide.
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