Following the sinking of the Deepwater Horizon in the Gulf of Mexico an unprecedented quantity of oil irrupted into the ocean at a depth of 1.5 km. The novelty of this event makes the oil’s subsequent fate in the deep ocean difficult to predict. This work identifies a fallout plume of hydrocarbons from the Macondo Well contaminating the ocean floor over an area of 3,200 km2. Our analysis suggests the oil initially was suspended in deep waters and then settled to the underlying sea floor.

Antibiotics are emerging environmental contaminants, causing both short-term and long-term alterations of natural microbial communities due to their high biological activities. The antibiotic resistance pattern of bacteria from anthropogenic polluted Oluwa River, Nigeria was carried out. Microbial profiling and antibiotic sensitivity tests were carried out on water and sediment samples using 13 different antibiotics. Microorganisms isolated include those in the genera Bacillus, Micrococcus, Pseudomonas, Streptococcus, Proteus and Staphylococcus.

The present study reports on a systematic procedure and maintenance plan for conducting dredging activity at the Kolkata port located in the Head Bay region, east coast of India. It is one of the oldest riverine ports in the country constructed by the British East India Company.

In recent decades, coral reef ecosystems have declined to the extent that reefs are now threatened globally. While many water quality parameters have been proposed to contribute to reef declines, little evidence exists conclusively linking specific water quality parameters with increased disease prevalence in situ. Here we report evidence from in situ coral health surveys confirming that chronic exposure to dredging-associated sediment plumes significantly increase the prevalence of white syndromes, a devastating group of globally important coral diseases.

The direct impacts of delta subsidence and effective seas level rise abetted by dams include inundation of coastal areas, saltwater intrusion into coastal aquifers, increased rates of coastal erosion, an increased exposure to storm surges, etc, in addition to the threat to food security, livelihood security, water security to millions and huge l

In a significant development on role of hydropower projects in Uttarakhand flood disaster of June 2013, the Expert Body (EB) headed by Dr Ravi Chopra has recommended that at least 23 hydropower projects should be dropped, that hydropower projects played significant role in the Uttarakhand disaster and that there is urgent need to improve the env

In an historic action that will protect people's health and the environment, and benefit riverfront communities, the U.S.

Models for river avulsions have identified the ratio between down-valley and cross-valley slopes of channels as the triggering factors for the sudden channel shift but have remained untested in the field. The August 2008 avulsion of the Kosi River at Kusaha, 12 km upstream of the Kosi barrage in Nepal, provided an opportunity to study a large-scale avulsion (~120 km) for its causal factors and driving mechanisms.

Successive state governments in Uttarakhand have pursued economic growth through industrialization without taking into account the fragility of the state’s mountains. A massive rain storm in June 2013 exposed the

Wetland in climate mitigation: a case study of organic carbon profile of Pallikaranai wetland, Chennai, Tamil Nadu, India - A presentation by M. Sridevi karpagavalli at the 4th National Research Conference on Climate Change, Indian Institute of Technology, Madras, October 26-27, 2013.