Environment

Sewerage management has become a Herculean problem in Chennai. Thanks to the inaction by government departments, our sewage reaches our water bodies sans any treatment, either through the storm water drain network or private septic tanks. The hard reality is that the pumping stations are running beyond their capacities, resulting in sewage stagnation in many localities including Adambakkam and Egmore. But how many of us know that grey water recycling can not only address these issues to a large extent but can also cut down on the household monthly water budget? By making use of the water used in the…

During a question and answer session in Delhi late last year, I was asked this question “Since Diwali, the Delhi government has installed 20 continuous monitoring stations. Despite that, why are the pollution levels still so high?” The simple answer to this is that monitoring is a diagnostic tool to assess levels of air pollution and in itself does not reduce any air pollution. What it does do, is provide a starting point for understanding the air pollution problem and a direction for addressing pollution control options. This however got me thinking. Having worked on air pollution-related research over my entire…

For more than a year, residents of Vijinanapura have been complaining to the BBMP about illegal dumping of animal waste near Benniganahalli Lake. There are about eight butcher shops in the 1.5 km stretch from Purva Midtown and the KR Puram Railways station. Everyday, feathers, inedible meat, carcasses (and at one time even a dead cow) are burnt near an overlay bridge at 3rd main road. The smoke, residue and stench from this has made life miserable for them. “This happens every morning, where tempo trucks drive up, dump about seven to eight cement bags of animal waste which they…

The news of mass tree destruction in Anna University in mid-February had incensed the student fraternity and  environmentalists in the city. The axe had fallen on the trees to make way for constructing the science and humanities building. But a visit to the campus proves that the trees were only plucked out to be transplanted scientifically, a procedure that has proved to be successful. The transplanted trees are now showing signs of life, as new leaves emerge. While Anna University is relying on scientific procedures in saving trees, the same cannot be said of Madras Christian College, which is situated within…

I felt quite thrilled as I found these leaves of Four-leaf Clover, and clicked them on February 5, 2018. Why the thrill? Here is the entry about Four-leaf Clover. Amongst other things, it says: The four-leaf clover is a rare variation of the common three-leaf clover. According to tradition, such clovers bring good luck,though it is not clear when or how that tradition got started. The first reference to luck might be from an 11-year-old girl, who wrote in an 1877 letter to St. Nicholas Magazine, “Did the fairies ever whisper in your ear, that a four-leaf clover brought good luck…

Activists and citizens in Bengaluru are incensed that the government just dissolved the Karnataka Lake Conservation and Development Authority (KLCDA) without even a discussion in the assembly, on March 1, 2018. The Legislative Assembly quietly passed the Tank Development Act when the members were not even present in full strength. It came as a surprise, nay shock, that the lakes needed to be handed over to the Minor Irrigation Department (MID), rather than the environment ministry, which it is intended for. The act is expected to come into effect in the next three months. A KLCDA official says that he…

A wide range of people from all over Bangalore, representing a range of organisations and communities from within the city, peri-urban areas and villages affected by waste disposal, were present when Justice N. Kumar (Retd.), Former Judge of the High Court of Karnataka, released: “Bangalore’s Toxic Legacy Intensifies: Status of Landfills, Waste Processing Sites and Dumping grounds, and working conditions of Pourakarmikas”, a report prepared by Environment Support Group. This report provides a critical framework to evaluate the progress achieved in advancing environmental and social justice of communities impacted by waste handling and disposal, and is prepared to support ongoing…

For an effective air quality management plan, a lot of information is required at various stages to ascertain the sources, their impacts on health, and their potential to control emissions. However, the most basic information that every city requires is ambient monitoring data. This data tells us, what is the level of air pollution, where and when is it the highest (spatial and temporal trends). It is very important that the ambient monitoring network for a city is representative, spatially and temporally, to support an effective long-term air quality management plan for the entire airshed of the city. For example,…

A recent BBC report projected that Bengaluru will run out of water soon. Yes, it was a superficial list of cities that already have water problem. It just pronounced the harsh verdict without any in-depth analysis of the factors involved. That’s like taking a casual look at an emaciated man and saying, “he is going to die soon”. But in this case, all the x-rays and MRIs are only going to confirm the same verdict. Ignoring the problem is going to worsen the situation. Let’s have a look at this complicated case, Munnabhai-style. He is bound to say, “Ae maamu!…

Do today’s modern marathon races generate a lot of the garbage and pollution that they are geared to fight? That is the question floated by a new campaign,  ‘Green the Mumbai Marathon’ started by Shilpi Sahu, a Bengaluru-based green activist who has been participating in races for almost six to seven years. She confirms that every race leads to a huge pile-up of plastic bottles, plates and tetra packs that have been used to serve water and food to runners and volunteers. With about 20,000 to 40,000 runners dumping plastic waste into lakes or nearby parks and crowding available spaces, a…