Depleting coal stocks around the world ring alarm bells for Power Industry

Coal (Natural resource ) deposits are depleting day by day as the major guzzler of coal are thermal power plants using coal as a primary fuel. Countries which have mismatch between production and consumption are relying on imports from surplus stocks of other countries. The environmentalists, and scientists as well as think tanks world over are sounding alerts against future disaster when the electrical production from the thermal power plants will seize. Although alternative sources like hydro, atomic, geothermal, wind, solar, petroleum products, gases are tapped all over the world, still capacity of thermal power plants established may not be replaced by these alternatives due to availability, geographical constraints, technology and safety norms etc. The greatest natural source of heat for mother Earth, the Sun seems to be only feasible, possible and available alternative for future electrical requirement. Unfortunately all nations are not coming together on single platform for generating a common programme to tap this potential. Do you think it is global necessity or not?