The polluted Hirohalli village lake on the outskirts of the City now has rare visitors: the critically endangered spot billed pelicans.

STRESSING ITS NEED: Tiruvallur Collector Rajendra Kumar speaking at a function to launch water bodies' adoption programme at SRM Eswari Engineering College recently.

Water bodies are subject to many important changes in due course of time. Therefore, a comparative study on Lake Jaisamand and Lake Pichhola were undertaken from July, 2004 to April, 2005. (2007)

One thing Canada is not short of is lakes. It has so many that it can afford to set some aside to experiment on. And that is what Karen Kidd, an ecotoxicologist at the University of New Brunswick, has just done to a small lake in north-west Ontario. She has poisoned it in the name of science.

The US Centers for Disease Control has been accused of withholding data related to health risks in and around the Great Lakes area. But the agency says the report, pairing toxin concentrations with human health concerns, which was due out last year, had "deficiencies'.

The 18-hole golf course close to Nal Sarovar, that is driving an unfettered property development near the bird sanctuary, threatens to upset the delicate ecology there. Environmentalists say that the amount of fertilizers, pesticides, fungicides and other chemicals required to maintain this vast, artificially created, landscape is a threat to the bio-diversity of the lake. According to experts, the usage of chemicals in maintaining golf courses at times even exceeds the amount used in agriculture. With such intensive use, golf courses threaten to pollute ground and surface waters. Member of Intergovernmental Panel on Climate Change (IPCC) and IIM-A faculty Prof Priyadarshi Shukla says this type of projects causes gradual and irreversible damage which breaks sustainability, putting pressure on the ecosystem. "Our green assets are under threat with a lot of property deve l o p m e n t h ap p e n i n g closer to ecosystems. If special laws are made for SEZs, which are productive assets, special laws are also needed for luxury assets, our ecosystems,' he says. "The golf course is being developed as a private property, but that should not happen at the cost of the ecology of Nal. Development should take place without compromising on the existence and sustainability of the ecology' says Shukla. According to environmentalist Kandarp Kathju, the golf course is more detrimental to the health of Nal Sarovar than any other project coming up there, such as the Film City. "Nal Sarovar and its downstream water bodies are at the heart of the delicate ecological system of the area. Today's golf requires tabletop greenery and this requires pesticides and fertilizers to maintain the course,' he says. Golf courses also require huge amount of water, which can result in depletion of underground as well as surface water levels. The entire area of Nal Sarovar with 360 islets is extremely shallow and seldom more than two metres deep, most of which get submerged during monsoon. Traditionally, farmers in the area have used water from the lake for cultivation. There are around 20,000 buffaloes in surrounding villages that feed on the aquatic plants and grass on the edges of Sarovar eight months of the year."The pesticides are likely to flow into the water bodies, besides percolating into the water table. Not just the aquatic environment, but the entire ecology, of which local communities are an integral part, is facing the risk of toxic chemicals polluting the water bodies,' says Kathju. Shukla says, "Developing a market requires foresight, and it is time the policy makers started

Lawmakers are again asserting that the Bush Administration is meddling in science. House Science Committee Democrats charge that federal officials have suppressed a report on potential health threats from pollution in the Great Lakes. They also say officials at the U.S. Centers for Disease Control and Prevention (CDC) in Atlanta, Georgia, may have punished a career federal scientist who oversaw it. CDC says the report had genuine scientific flaws.

Badha lake at the periphery of Fazilka town has dried up. The Badha lake, with its fresh water source and green surroundings was the attraction for establishing the boating station at this place. Now that it was dried up and is likely to be never change with water from Sutlej.

A biomonitoring study was carried out at Kanewal reservoir, an internationally important wetland listed in Asian Directory of Wetlands, designated as a "Wetland of National Importance' and a
proposed community reserve of Gujarat State, India, to ascertain the degree of trace element contamination. The study focused on assessment of trace element contamination in certain aquatic

The present study was designed to assess the nature and present status of the two permanent Ranipettai reservoirs viz., Clive Bazaar and Talankur Lakes aeas, Arcot, Vellore with special reference to zooplankton biodiversity.

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