Climate Change Presentation Script Click: Click: Click: Click: Click: Click:

This presentation has been prepared by the Saskatchewan Environmental Society and will outline: The greenhouse effect, climate change impacts (globally, and locally), a few of the major greenhouse gasses and where they come from, electricity production and other emissions in Saskatchewan, and will touch on some things we can do to reduce the severity of climate change. [...] Click: some of this energy reflects off the atmosphere, and back into space Click: the rest comes through the atmosphere and hits the earth Click: some of that reflects back into space Click: The rest of that energy heats up the earth, and our atmosphere Click: because the earth is warm, it now radiates, or gives off, infrared heat Click: some of this heat radiates out into space Click: but some o. [...] Click, click, click: (no words) Click: The energy still comes from the sun, Click: and reflects off the atmosphere Click, click: and earth Click: The earth still warms up Click: and Energy still radiates from the earth Click: but less of this energy makes it through the atmosphere and out to space Click: more of the energy is radiated back to earth Click: making the earth and atmosphere warmer Sas. [...] Human influence has been detected in warming of the atmosphere and the ocean, in changes in the global water cycle, in reductions in snow and ice, in global mean sea level rise, and in changes in some climate extremes (Figure SPM.6 and Table SPM.1). [...] Extra: For more information on the lifetime of carbon dioxide in the atmosphere see: Climate Change 2007: The Physical Science Basis, Working Group 1 of the Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, page 824.