Yellowing of marbles in the Taj Mahal may stop soon and the closure of 200-odd foundries near it may be prevented, thanks to an eco-friendly melting furnace developed for the polluting commercial
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/new-furnace-reduce-yellowing-taj-mahal
[2] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment