Coal

Chinese scientists have developed a cost-effective method of converting coal into protein, which they say could feed livestock much more efficiently than natural plants, while using a tiny fraction of the land.

Concrete is made of a combination of cement, an aggregate such as gravel, and water. If that mixture dries too fast, then cracks can form within it as it cures. Now, however, scientists have determined that the use of coal-ash spheres can help keep that from happening.

Capturing carbon from the air and sequestering it is emerging as a viable strategy, and now scientists have developed a new method to turn CO2 gas back into solid coal, that can then be buried, or even used for electronic components.

Despite shale gas contributing to a reduction in the CO2 output of America's energy sector, the authors of a new report claim is likely to increase emissions overall.

The Coalition for Sustainable Rail is aiming to convert a 1937 locomotive into the world’s first carbon-neutral higher-speed locomotive.

Xcel and Abengoa have built the world's first hybrid solar/coal power station.