Environment

Uncertain livelihoods, deteriorating health and poverty resulting from pollution have placed the women of Ennore in deep distress. What are their demands?

A recent study shows unplanned growth and urbanisation have raised summer surface temperatures in some areas by as much 5.8 degree C over the period 1991-2016.

Replenishing Chennai’s groundwater sources through various recharge mechanisms and harnessing urban runoff during rains is critical. Learn more about the process here.

The coronavirus pandemic has set off ripple effects on several fronts. We take a look at how wildlife facilities in Chennai are managing.

Health experts raise an alarm over uncontrolled emissions and damaging levels of PM2.5 concentrations in the city’s air.

NO2 pollution, continued exposure to which can cause severe health hazards, has seen a 94% spike since April 2020. The city urgently needs long term solutions.

More than 1000 acres of the backwaters are heavily contaminated with fly ash from the leaking pipelines of TANGEDCO. Government promises and court orders have all come to nought.

The purpose of Nizhal’s tree survey is to empower communities to take charge of their spaces, compile data and alert the authorities about various problems that the trees face.

There has been a stark difference in pollution levels in Chennai, during the lockdown and post lockdown. A Greenpeace report points to the spike in NO2 levels in the city air.

Retteri Lake came to Chennai’s rescue during the drought of 2019. Now residents in surrounding areas want action against encroachment and sewage dumping in the lake.

Public memory and paper records are what activists rely on today, but GIS mapping of lakes would provide more information and help citizens play a role in conservation.

சென்னையில் எல்லா பகுதிகளிலும் நிலத்தடிநீர் ஒரே அளவில் இல்லை. எந்த பகுதிகளில் நிலத்தடிநீர் அதிகம் உள்ளது? எங்கு குறைவாக உள்ளது? இதற்கான காரணங்கள் என்ன?