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Module 3 Economics of Climate Change and Ozone Less Module 3 discusses the issues of climate change and ozone less and how measures are being undertaken internationally and at domestic level in order to address these issues. Objectives After following this module, you should be able to understand/ familiarize: Climate Change Policy response to climate change Economic analysis of climate change policy Ozone depletion Controlling ozone depletion Economic analysis of ozone depletion policy Outline/Discussions I. Climate Change a. Climate change refers to a major alteration in a climate measure such as temperature, wind, and precipitation that is prolonged, i.e., lasting decades or longer b. A source of controversy is the predicted climate response to the increasing production of what are termed greenhouse gases (GHGs) c. Global warming: Sunlight hits earth’s surface, radiates back into atmosphere, where its absorption by GHGs heats atmosphere and warms earth’s surface d. Warming process is natural; becomes problematic if natural GHG levels are disrupted e. Among the primary GHGs is carbon dioxide (CO2) f. Accumulating CO2 is linked to fossil fuel combustion and deforestation g. Capacity of each GHG to trap heat relative to CO2 is measured by a global warming potential (GWP) h. Most agree that GHGs (CO2) are rising i. Scientists agree that rising GHGs will affect climate j. Uncertainty is about when this may happen and the extent of effect II. Policy response to climate change a. U.N. Framework Convention on Climate Change b. United Nations Climate Change Conference COP15 c. Chicago Climate Exchange (CCX) d. Philippine government policy response to climate change III. Economic analysis of climate change policy a. Benefits of controlling GHGs b. Market Failure Analysis c. Market-Based Policy Option i. Pollution charge (Gasoline, BTU and Carbon tax) ii. Analyzing pollution charges d. Tradeable Permit System IV. Ozone Depletion a. Ozone depletion refers to the thinning of the stratospheric ozone layer b. Result is a loss of earth’s protection from UV radiation c. Primary ozone depleters are chlorofluorocarbons (CFCs) and halons. These break down in UV light, releasing chlorine, which destroys stratospheric ozone molecules V. Controlling Ozone Depletion a. International policy i. Montreal Protocol and Amendments b. Domestic policy i. Excise tax on ozone depleters ii. Philippine government policies to curtail/minimize ozone depletion