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…

Long before Mumbai’s relentless summer even began this year, the city was already simmering. In March, Mumbai was hit by a severe heatwave, with the temperature reaching a five-year high of 40° Celsius. As rapid urbanisation and a flurry of infrastructure projects replace dense tree cover with steel and mortar, heatwaves seem to have gone from being rare occurrences to an annual threat.   The Mumbai Metro Rail Corporation Limited (MMRCL) cut a whopping 3,093 trees in Aarey Colony to make way for Mumbai’s Aqua Line ( Metro 3). For environmentalist Stalin Dayanand, this is not just a temporary problem.…