Every monsoon, South Chennai goes underwater. The only sponge that soaks up all that rain is the Pallikaranai Marsh, yet around it, 8,619 hectares of land face severe flood risks. Despite this, the State has offered to protect only a fraction of that land.  On October 9th, the Tamil Nadu State Wetlands Authority (TNSWA) told the Madras High Court  that the marsh's interim Zone of Influence (ZoI) is just 36 survey numbers, covering 128.19 hectares. The next hearing of the case is on November 11th.  Scattered "protection"  These plots lie in bits and pieces across seven villages, from Pallikaranai to Perumbakkam.…

In Chengalpattu district, the main water channels of the Kovalam-Nemmeli coastal wetland, which drains a catchment of more than 270 square kilometres, have currently been blocked. Barriers that obstruct water flow have been built across Chennai's Buckingham Canal at three places: Thiruvidanthai-Vadanemmeli, near the Nemmeli-Thiruporur bridge, and Saluvankuppam. Earlier, we explored how the Mamallan Reservoir causes serious damage to the wetland’s ecology and how fishing livelihoods are affected. Field investigations by the Wetland Conservation Network have recorded the blockages preventing tidal exchange in the Buckingham Canal.           According to officials, these barriers were put up to enable construction of the Mamallan…