RENEWABLE AND NON-RENEWABLE SOURCESAre we facing an energy crisis?

LEARNING OUTCOMES Compare the use of non-renewable

and renewable energy sources and their impact on global climate change

CLASSIFY THE FOLLOWING: Biomass Coal Hydroelectricity Natural Gas Nuclear energy (fission) Oil Solar energy Wind energy

NON-RENEWABLE SOURCES Cannot be replenished Limited and will be used up after some

time Increase air pollution during

consumption. Gases and particulate matter emitted into the atmosphere not only reduce air quality but also cause harm to humans

NON-RENEWABLE SOURCES Do you think that these resources can

last us for a long time? How much energy reserves do we

have left?

RENEWABLE SOURCES Renewable energy sources can be

replenished continually as they are abundantly found in nature

All of them are non-polluting but the devices used to collect the energy may impact the environment adversely

They are free but producing storage equipment or converting them into another form of energy may be costly

RENEWABLE SOURCES Do you think it is feasible to rely on

renewable energy sources to meet the Earth’s energy demands?

1 btu = 1055 J