Underwater robots tasked with saving coral reefs are being developed at Heriot-Watt University in Scotland.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/underwater-robots-repair-scotlands-coral-reefs
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/bbc-uk
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/corals
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/marine-ecosystems
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fisheries
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/science-and-technology