After two decades of hardwork, on 5 February 2012, a team of Russian scientists began drilling at Lake Vostok, the largest of more than 140 sub-glacial lakes and the most deeply buried of the lakes hidden under the Antarctic ice cap.

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.

In China, and elsewhere, long-term economic development and poverty alleviation need to be balanced against the likelihood of ecological failure. Here, we show how paleoenvironmental records can provide important multidecadal perspectives on ecosystem services (ES). More than 50 different paleoenvironmental proxy records can be mapped to a wide range of ES categories and subcategories. Lake sediments are particularly suitable for reconstructing records of regulating services, such as soil stability, sediment regulation, and water purification, which are often less well monitored.

Red sandy dunal soils of Tamil Nadu is called Theri soils. They occupy about 20,000 ha. Tuticorin district has the largest area 11,200 ha. Different interpretative systems have indicated that these are not suitable for agriculture. In this study, tank silt is used to amend the soil and the different physical parameters which make the soil better for cultivation are estimated and their interrelationships are presented.

Uncertainties over contaminated groundwater in southern Asia highlight gaps in science.

Meandering phenomena takes place over an alluvial plane due to fluvial hydraulic forces, influence of gravity and sediment transport. For an alluvial channel, the resistance offered by the bed and bank varies with the bed material and saturation level of the bank-material and as such as the probability of bed load movement depends on the mobilizing force at initial bed condition. In the present study, a Physical Model has been developed considering Froude similitude.

Physico-chemical characteristics of Rajakkamangalam estuary situated in Kanyakumari district of Tamil Nadu and its sediment samples were collected in 4 sampling stations in 2001.

The consumption of shallow groundwater with elevated concentrations of arsenic is causing widespread disease in many parts of South and Southeast Asia. In the Bengal Basin, a growing reliance on groundwater sourced below 150-m depth—where arsenic concentrations tend to be lower—has reduced exposure. Groundwater flow simulations have suggested that these deep waters are at risk of contamination due to replenishment with high-arsenic groundwater from above, even when deep water pumping is restricted to domestic use.