3 Renewable Energy Sources SolarWindGeothermalHydroelectricTidalBiomass
4 Fossil Fuels Pros Cons cheap plentiful technology exists oil can be transported over long distances by pipelinecontributes to climate change (builds up carbon dioxide in atmosphere)unsustainable (depletion of stock over time)will become difficult to extract ( becomes dangerous as they go further into the sea or deeper into the ground)oil spillages and pipelines burst damage ecosystems ( expensive to clear up)mines clear up habitat from surfacecoal not easily transported over long distance
5 Nuclear Energy Pros Cons does not emit carbon dioxide technology is availablevast amounts of electrical energy produced by a single power plantvery efficient ( 1kg uranium contains times more energy than 1kg of coalnuclear waste is VERY dangerous, remains for thousands of years with no solution found yetthe more power plants, the higher risks of having a disastrous failure somewhere in the worlduranium is the energy source which is scarce and a non-renewable source with a estimated time of 30-60years left before depletion (depending on demand)time to plan/build a nuclear plant is years
6 Hydroelectric Power Pros Cons blocked lake can be used for leisure, irrigation and electricity generationonce built they are cheap to runvast areas may be flooded, which causes loss of homes, farmlands and displacement of peopleexpensiveerosion rates increasemight silt up area and become unusable
7 Tidal Power Pros Cons Will not run out No pollution expensive might be harmful to wildlifeneeds good tidal range
8 Solar EnergyProsConssolar energy with insulation is cheaper than fossil fuel energy when heating homesexpensiveuseless in winter in northern countriesOnly works when the sun is out
9 Wind Power Pros Cons Small ecological footprint No pollutants no wind = no energyplacement is critical, needs constant windCan kill wildlife
10 Biofuel Pros Cons produces emissions requires large areas of land to plant biofuel croppushes up food priceslocals do not get enough foodmay destroy surrounding ecosystems to grow on
11 Energy from Waste Pros Cons available does not deplete natural gas useful way of getting rid of wasteglobal warming gases released into atmosphere
12 Geothermal Energy Pros Cons No pollution Needs to be buried deep under the ground our under waterExpensive
13 MEDCs have higher energy demands than LEDCs, as they depend on energy for many things such as transport, heating, air-conditioning, cooking and all other aspects of their lives.The choice of what energy source should be used is different from country to country. Some have large oil, coal and gas reserves and that makes fossil fuels an obvious choice for an energy source. However generation of energy also depends on its availability, economy, cultural, environmental and technological factors. When an energy resource is available and close, it is more easier and efficient to use.
14 Culture fears based on the fear of nuclear accidents and waste, have made it quite unpopular to choose.Cultural and tradition means that non-renewable resources are favored, and the places with renewable energy resources are limited.Renewable energy sources are not being used much globally which means that it is still not ready to meet current demands.Renewable sources can be used more if the production prices of the non-renewable sources are increased. This may better the environment as higher costs of the fossil furls means that peoples view will change.Peoples interest in renewable resources has led to an increased demand for renewable and non-pollution sources. This leads to greater investments and research into more alternatives or improvements.