1. Kate Tracey Grace Tita Amanda Richey

2. What is it? A naturally occurring and necessary process that warms the Earth.

3. Why is the greenhouse effect necessary? The gases trap in heat that the Earth’s inhabitants need to survive Without the greenhouse gases the Earth would be 86 degrees Fahrenheit cooler at all times.

4. Can it be a bad thing? Yes… Too many greenhouse gases can cause extra heat to be trapped within the Earth’s atmosphere. This causes the Earth’s temperature to rise, which in turn, affects many other things.

5. Average Global Temperature by Decade, 1880-2004 DecadeAvg Temp (Degrees C) 1880-188913.82 1890-189913.69 1900-190913.74 1910-191913.79 1920-192913.91 1930-193914.02 1940-194914.05 1950-195913.98 1960-196913.94 1970-197914.01 1980-198914.26 1990-199914.40 2000-200714.64

7. What makes up the Earth’s Atmosphere? 78% Nitrogen 21% Oxygen 1% Greenhouse Gases Carbon Dioxide Methane Water Vapor Ozone

8. What are the natural sources of greenhouse gases? Carbon Dioxide Humans and Animals Breathing Volcanoes Methane Cattles Digesting Food Rice Fields Ozone is naturally occurring

9. What are the man-made sources of greenhouse gases? Methane Released from buried waste Coal mining Carbon Dioxide Burning of coal, oil, and gas Cutting down trees

11. What things are affected? The weather Hotter summers Possible temperature change year round Water Changes in rain fall patterns Farming Weather patterns affect crops Sea Levels Melting ice Warmer oceans

12. What can be done to slow down global warming? Plant more trees Recycle Reduce man-made emissions Solar Power Hydro Power Wind Power Carpool, bike, walk Use power carefully

13. Sources Greenhouse effect picture http://www.whrc.org/resources/online_publications/ warming_earth/the_greenhouse_effect.htm Global temp and CO2 concentration data Source: Goddard Institute for Space Studies, NASA Goddard Space Flight Center Earth Sciences Directorate, "Global Temperature Anomalies in.01 C," at data.giss.nasa.gov/gistemp/tabledata/GLB.Ts.txt, updated January 2008data.giss.nasa.gov/gistemp/tabledata/GLB.Ts.txt