Benefits Of Renewable Energy Sources Essay
Oil 's high energy content has made it the principal liquid fuel of choice, with transport
accounting for over 25% of energy use (and still growing) in economically advanced
countries. Increasing atmospheric CO2 concentration, and the potential for significant
greenhouse gas-mediated climate change, which now seems likely to affect all parts of the
world provides real challenges for scientists all over the world.
Petroleum is a limited resource that will eventually run out or become too expensive to
recover. These factors are driving the development of renewable energy sources that can
supplant fossil fuels, and allow greater access to fuel resources for all nations, while greatly
reducing carbon emissions into the atmosphere. A number of technologies have been
examined as renewable energy sources and, although no single strategy is likely to provide
a total solution, it seems possible that a combination of strategies can be employed that will
substantially decrease our dependence on fossil fuels.
An attractive alternative to oil is liquid biofuel, derived from plants, which as they grow
will absorb as much carbon dioxide as is subsequently released when they are combusted.
This means that the net production of carbon dioxide can be lower than that from burning
a fossil fuel.
However, energy and other inputs are still required for the production of the biofuel and
these lead to significant greenhouse gas emissions.
Biofuel describes a…