ABSTRACTThis presentation is about global warming, the causes and the environmental consequences that scientists predict for the future of the planet if this phenomenon keeps on affecting the environment at the same rate it has been affected specially since the industrial revolution.There are many scientists that are working on solutions against global warming, but in this presentation we will also examine the consequences that may come if actions are or not taken against global warming.
OUTLINE1. What is Global Warming?2. Causes of global warming 2.1. Greenhouse effect:3.Activities disturbing the Greenhouse effect:4. Effects of global warming:5. Consequences of taking or not taking actionagainst global warming
1. What is global warming?Global warming refers to a group ofalterations in the earth’s temperature which can affect the climatic parameters.
2. Causes Increase in the amount of greenhouse gasses in the atmosphere attributed mainly to human activity. Which has caused an unbalance in the process called the green house effect. Since1900, the average temperature on the planet has increased by 0.74 degrees Celsius
3. Greenhouse effectAs human beingssurrounded byamountsincreasingof trees gas,remove CO2 hasThe Thethe burningcut largesmall some is absorbed. The absorbedthe amount lifeSometogases help reflected and as part of oil, and keeping to lightmakesTheseof the lightgases in thetemperaturecapacity earth.carbon dioxide, nitrous Dueatmosphere of down surface of coal, their naturalprocesses warms earth is from theforests are of methane,of trapped the of blanketThe greenhouse is regulateamountswarmingthe naturalair which more heatTrees remove wecontains occurs when sunlight passes through the CO2 air a large amounts of fossil fuels and pollute theThesurfaceothergases inresulting in an increase inradiates increased 30% this thediminished, of theineffecttheto burn surface was notgreenhouse gases,into gases greenhouseoxide the as gases the heated earthknown the world surfaceby since of sustainable continue atmosphere dramatically infrared temperaturewithinand atmosphereintheatmosphere hasthen as surroundedlight this layerthegreenhouse earth, planet. If theatmosphere heat through a house effect is occurring.known as global warming. the earth and it’s absorbed by greenhouse the green house effect. strikesplanet an exaggerated green vital process called gases.helpearth would be much too cold for human habitation. 1750. retain toatmosphere where
4. Activities disturbing the greenhouse effect Burning fossil fuels Deforestation A growing world population
4.1 Sources of emissions 65% from burning fuel to create energy (excluding transport) 21% from transport 9% from agriculture – for example, nitrous oxide from chemical fertilizers or methane given off by animals and manure. 5% from industry – for example, manufacturing goods
5. Effects of global warming Changing sea levels and rising of temperatures. Extreme weather like floods, droughts and tropical storms. Extinction of some species Impact in economy Lack of food and water Diseases Lost of rainforests
6. Consequences of taking or not taking action against global warming Taking action GLOBAL “NO” “YES” WARMING COST $$$ FALSE + GLOBAL DEPRESION COST $$$ CATASTROPHES TRUE Economic Political Social Environmental Health By Greg Craven