A study? Thousands of studies demonstrate that the world depend on coal for the next 300 years at least.
Russian president Vladimir Putin has warned the European Union that the Ukraine conflict could put winter gas supplies at risk, ahead of top-level talks on the crisis today.
Cost average is $5.58.
(Reuters) - A power plant in New Delhi is among 37 across India that have either exhausted their coal or have less than four days' supply, a shortage that has forced some states to ration power for industries and homes.
Many states have been hit by a severe power deficit which has dealt a blow to small-scale factories that produce everything from steel to textiles and cannot afford alternatives such as diesel generators.
"The situation is very bad, with power cuts of up to 16 hours a day," said Vijay Agarwal, a director at Puja Ferro Alloys in Goa. "The shortage has raised our costs while output is at 60 percent of what it should be."