The country, along with India, is still building power stations that run on coal. Elsewhere, retirements of older plants have slowed. By Max Bearak See more of our coverage in your search ...

A large section of the Fifth Estate, that world company of scientists, climbed the Allegheny Mountains to Pittsburgh last week. They knew soft coal, what it was and what could profitably be done with ...

Japan says that by blending ammonia with coal in its boilers, it can make coal less damaging to the planet. But the technology faces many hurdles. By Motoko Rich and Hikari Hida Reporting from Hekinan ...