In the 27 years since he became headmaster of a school in Trishal, in northern Bangladesh, Mohamed Iqbal Baher has noticed some changes in his pupils.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/beating-bugs
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/economist-london
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangladesh
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sanitation
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diarrhoea
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/infant-mortality
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/who
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater