Some Knowledge

The natural carbon cycle of plants and environment on earth can be used to supply energy to the world.  Solar energy from the sun is captured by the chlorophyll in plants, which take water and carbon dioxide and forms carbohydrates.  The light energy of the sun is converted into chemical potential energy in the tissues of the plant.  All life is based on and gets its energy from this natural process.  All the food we eat is derived from plant sources on some level.

It is simply a matter of using the available surface area of the earth to grow plants.  Trees, grasses, food crops, any botanical source of material can be used to generate power for use by man.  Trees can be grown and harvested every few years for use as fuel or for conversion into liquid or gaseous fuels.  Algae can be grown in ponds and processed into liquid fuels.  It will take some effort to convert from a system that utilizes fossil fuels, but it is entirely possible to use the energy from plants to run our society.

Care must be taken in implementing any kind of energy farming system that adequate land is left to grow food crops.  Waste material from the growth of food can also be used as fuel in biomass power generation schemes.  People might use the corn kernels for food and burn the cobs and stalks for energy.  Biomass fuels are not as dense or compressed as fossil fuels, so some research into transportation and storage might still need to be done.

The world will never run out of energy as long as the sun keeps shining.  Plants have been providing energy for the living creatures of this planet since only blue-green algae lived in the primitive seas of earth.  People learned to harness this energy for heat and light when they discovered the use of fire.  It may take some effort and funding, but the technology is already in place to use plants as fuel for the coming ages.