1. Global Warming By : Rodrigo Pérez Andrés Varela Juan Héctor Villa

2. What is Global Warming Global warming is the observed and projected increases in the average temperature of Earth's atmosphere and oceans and we all are personally responsible for it. Cause Greenhouse gases (carbon dioxide) are those gases we are releasing into the atmosphere by burning fossil fuels for transportation (driving and flying) and home energy (electricity, heating, and cooling). This leads to global warming, which is destroying Earth's biodiversity and native ecosystems.

3. Cause Trends for greenhouse gases: Carbon dioxide (CO 2 ) and nitrous oxide (NO x ) concentrations in the atmosphere are still increasing. For the other major greenhouse gases, the steady upward trend has been broken. (Graph taken from http://upload.wikimedia.org/wikipedia/en/b/bb/Major_greenhouse_gas_trends.png)

4. Facts Glaciers and mountain snows are rapidly melting for example. Coral reefs, are very sensitive to changes in water temperature; if we keep having this behavior in 50 years the temperature will be so high that corals will die. Adélie penguins on Antarctica, where their numbers have fallen from 32,000 breeding pairs to 11,000 in 30 years. Rain and snowfall has increased across the earth.

5. Facts The earths average temperature has increased 1.4 degrees Fahrenheit since 1880. The Arctic is feeling the effects the most. Temperatures in Alaska, Canada, and Russia have risen at twice the global average. In the Arctic the ice is disappearing, and polar bears are loosing their habits. In the Arctic the ice by 2040 or earlier is going to finish the sea- ice loss.

6. Effects on resources Wildfires heat waves, and strong tropical storms and hurricanes are likely to become stronger. Some animals have to move from theier habitat because of the climate damage: butterflies, foxes, and alpine plants have moved farther north to cooler areas. Less fresh water will be available. Some diseases, the ones carried by mosquitos will spread easier (like malaria). It affects the planet because they loose their habitats and they do not have the correct place to live.

7. How to stop it What we do from today forward makes a big difference. We are all personally responsible for releasing carbon dioxide into the atmosphere by burning fossil fuels for transportation (driving and flying) and home energy (electricity, heating, and cooling). This leads to global warming, which is destroying Earth's biodiversity and native ecosystems. To help stop global warming, we have to make plans and changes in different aspects such as economics, sociology, and politics.

8. How to stop it What we do from today forward makes a big difference. The way we can stop global warming is reducing concentrations geenhouse gases production in the future: – Policys that make people use energy efficiently –Improvements in technology for home uses in wind and solar power –Use of gas natural vehicules and fuel economy (so less energy has to be produced), –Capture the carbon dioxide emitted from fossil fuels and store it underground. Do not deforest because trees and plants absorb CO2 as they grow, "sequestering" carbon naturally. Increase forestlands. Reduce your use of fossil fuels Protect native forests as "carbon storehouses" Help plant native trees in urban and deforested areas

9. Our understanding We understood that global warming is the change of temperature. It affects animals because they loose their habitats and sometimes die. We can do good thigs to prevent global warming taking care of the environment. If we do not change quickly animals like polar bears or penguins will die. We can help using in the correct way resources; not throgwing garbage in to rivers; not wasting water, energy, etc. Walking, using bikes, electric cars, or gas cars.

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12. References http://timeforchange.org/definition-for-global-warming-what-is-global- warming(accessed 3/12/11) http://timeforchange.org/definition-for-global-warming-what-is-global- warming http://www.wildernessproject.org/members_join_nativetrees.php?gcl id=CL7VxIma8KwCFQpV7Aod_0DGKw (accessed 3/12/11) http://www.wildernessproject.org/members_join_nativetrees.php?gcl id=CL7VxIma8KwCFQpV7Aod_0DGKw http://globalwarmingkids.net/ - (©2007-2011 ClimateChangeEducation.org) (accessed 4/12/11) http://globalwarmingkids.net/ http://news.nationalgeographic.com/news/2004/12/1206_041206_gl obal_warming.html - (© 1996- National Geographic Society. All rights reserved) (accessed 4/12/11) http://news.nationalgeographic.com/news/2004/12/1206_041206_gl obal_warming.html http://environment.nationalgeographic.com/environment/global- warming/gw-effects/ - (© 1996-2011 National Geographic Society. All rights reserved) (accessed 4/12/11) http://environment.nationalgeographic.com/environment/global- warming/gw-effects/ http://library.thinkquest.org/J003411/causes.htm(accessed 10/12/11) http://library.thinkquest.org/J003411/causes.htm

13. References Think Quest. (2011) Global Warming.(online) Available at: http://library.thinkquest.org/CR0215471/global_warming.htm (accessed 29/11/11) Think Quest. (2011) A students guide to Global Climate change.(online) Avalable at: http://library.thinkquest.org/CR0215471/global_warming.htm (accessed 29/11/11) http://library.thinkquest.org/CR0215471/global_warming.htm National Geographic. (2011) Global Warming.(online) Available at: http://environment.nationalgeographic.com/environment/global- warming/?source=NavEnvGlobal (accessed 29/11/11) http://environment.nationalgeographic.com/environment/global- warming/?source=NavEnvGlobal Global warming kids. (2011) What are global warming and climate change?.(online) Available at: http://www.global-warming-and-climate-change.com/ (accessed 29/11/11) http://www.global-warming-and-climate-change.com/

14. Thanks for watching!!!! Andrés Varela Juan Héctor Villa Rodrigo Pérez