Emissions from tropical hydropower are often underestimated and can exceed those of fossil fuel for decades.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/greenhouse-gas-emissions-tropical-dams
[2] http://admin.indiaenvironmentportal.org.in/category/author/philip-m-fearnside
[3] http://admin.indiaenvironmentportal.org.in/category/author/salvador-pueyo
[4] http://admin.indiaenvironmentportal.org.in/category/journal/nature-climate-change
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dams
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/amazon
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/methane
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydroelectricity
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/brazil
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/french-guiana
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/reservoirs
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/turbines