from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Coal which has been cleaned up to make it environmentally acceptable.
Sorry, no etymologies found.
There are already over 90 AP6 projects working on sharing best practices and technologies, and joining forces in further research and demonstration in crucial areas such as clean coal technologies and renewable energies.
We should be investing in American companies that invest in American-manufactured solar panels and windmills, and in clean coal technology.