Order of the National Green Tribunal in the matter of Residents Welfare Association Savita Vihar Vs Irrigation & Flood Control Department & Others dated 28/05/2025. The applicant raised the grievance against throwing of construction debris and sewage obstruction in the Ghazipur drain. According to the applicant this drain flows behind …
400,000 MAY BE DISPLACED The environmental impact assessment (EIA) of the project says 276 villages will be affected; an estimated 177,275 people live in these villages. The Polavaram Project Environmental Impact Appraisal Report of 1985 expected 150,697 people to be displaced in 226 villages. But the population of these villages …
On February 26, as night fell on the tranquil Gahirmatha beach in Odisha, thousands of Olive Ridley turtles crawled in. Using their rear flippers, they dug pits in the soft beach sand and started laying eggs, more than 100 at a time. Then they skilfully covered the nests with sand …
AMID predictions by climate scientists that half the coastal marshes may not survive rising sea level, comes a glimmer of hope. A study published in Geophysical Research Letters in December says vegetated wetlands with high tidal ranges—remaining flooded for longer periods—and sediment concentration may survive sea level rise. The researchers …
Those who enjoy the wetlands and seafood of New England's coastline may be surprised by who they have to thank: the loggers of the 18th and 19th centuries. In clearing vast tracts of land, those prolific loggers released so much sand and dirt that open-water bays turned into swamps.
Recolonization of benthos following dredging operations was studied in Mormugao Port Trust Harbour, Goa. Six stations were fixed for sampling within the radius of the dredging site. Three samples each were collected during dredging and after dredging.
A treatability study was conducted to determine the most effective bioremediation strategies for the decontamination of sediments dredged from industrially polluted Gandigudem Lake. Microcosm experiments were performed with the addition of a microbial consortium and nutrients. The performance of each treatment was examined by monitoring biological parameters such as basal …
Soil erosion is a natural process accelerated by human activities. Each year, erosion of surface soil from river basins amounts to 60 billion tons, resulting in 24 billion tons of sediment flux to the oceans in the world and almost 25 billion tons of soil lost from agricultural land. From …
This paper depicts a research work comprising an attempt to estimate the rate of sedimentation from the basin surface of the Malampuzha, typical multi purpose storage reservoir on the western slopes of the Western Ghats in the Kerala state. The authors have employed the MMF model for computing the rate …
The fossil diatoms and geochemistry of the lake water and sediments of Ambazari Lake, Nagpur were studied. The diatoms assemblages with the characteristics of different salinity regimes and pH have been identified and grouped from the bottom (unit I) to the top (unit III) of the core. Units I
Great effort continues to focus on ecosystem restoration and reduction of nutrient inputs thought to be responsible, in part, for declines in estuary habitats worldwide. The ability of environmental policy to address restoration is limited, in part, by uncertainty in the relationships between costly restoration and benefits. Here, we present …
Water erosion caused by accelerated anthropogenic activities has been perceived as the major source of sediment flow in Himalayan catchments. Keeping this in view, the sediment flux data measured at the outlet of the Sainj and the Tirthan watersheds in the Lesser Himalayan region was analysed. Rainfall behaviour coupled with …
FOR the past five years Hyderabad has been trying to clean the Hussain Sagar Lake, separating the twin cities of Hyderabad and Secunderabad in Andhra Pradesh. The efforts suffered yet another blow on June 20 when the Andhra Pradesh Pollution Control Board (APPCB) denied permission to dredge the mouths of …
For the past five years Hyderabad has been trying to clean the Hussain Sagar Lake, separating the twin cities of Hyderabad and Secunderabad in Andhra Pradesh. The efforts suffered yet another blow on June 20 when the Andhra Pradesh Pollution Control Board (APPCB) denied permission to dredge the mouths of …
Sedimentological and stable isotopic characteristics of sediments have been studied in a core from the south-eastern Arabian Sea containing records of the past 70 ka. Palaeoproductivity proxies such as organic carbon (Corg), total nitrogen (TN) and calcium carbonate (CaCO3) contents, show high values at the core top and during the …
There is urgent need for publicly known norms of transparency and accountability in operation of reservoirs that are like time bombs that can explode multiple times. Bhakra exploded in 1988, Ukai in Gujarat did in Aug 2006, Hirakud did in Sep 2008, Srisailam, Tungabhadra, Upper Krishna and Damodar dams did …
The annual burial of organic carbon in lakes and reservoirs exceeds that of ocean sediments, but inland waters are components of the global carbon cycle that receive only limited attention. Here the authors find that the mineralization of organic carbon in lake sediments exhibits a strong positive relationship with temperature, …
Each year, ocean sediments produce a quantity of methane equivalent to about half of the methane emitted to the atmosphere from all natural sources (1). Very little of the methane produced below the sea floor, however, reaches the ocean or the atmosphere; most is consumed by anaerobic microorganisms as it …
Emissions of African dust increased sharply in the early 1970s, but the human contribution to land degradation and dust mobilization remains poorly understood. Now, a 3,200-year record of dust deposition off northwest Africa has been constructed. On the basis of this dust record and a proxy record for West African …
THE oceans are as vast and unexplored as the universe. They churn up something new everyday. The most recent discovery is a multicellular organism that can live in the darkest depths without oxygen. During the last 10 years, marine scientist Roberto Danovaro and colleagues at the Marche Polytechnic University in …
