The Ganges is a trans-boundary river of Asia which flows through India and Bangladesh. The 2,525 km (1,569 mi)-long river rises in the western Himalayas in the Indian state of Uttarakhand. It flows south and east through the Gangetic plain of North India, receiving the right-bank tributary, the Yamuna, which also rises in the western Indian Himalayas, and several left-bank tributaries from Nepal that account for the bulk of its flow. In West Bengal state, India, a feeder canal taking off from its right bank diverts 50% of its flow southwards, artificially connecting it to the Hooghly River. The Ganges continues into Bangladesh, its name changing to the Padma. It is then joined by the Jamuna, the lower stream of the Brahmaputra, and eventually the Meghna, forming the major estuary of the Ganges Delta, and emptying into the Bay of Bengal. The Ganges–Brahmaputra–Meghna system is the second-largest river on earth by discharge.
The Yamuna is the second-largest tributary river of the Ganges by discharge and the longest tributary in India. Originating from the Yamunotri Glacier at a height of about 4,500 m (14,800 ft) on the southwestern slopes of Bandarpunch peaks of the Lower Himalaya in Uttarakhand, it travels 1,376 kilometres (855 mi) and has a drainage system of 366,223 square kilometres (141,399 sq mi), 40.2% of the entire Ganges Basin. It merges with the Ganges at Triveni Sangam, Prayagraj, which is a site of the Kumbh Mela, a Hindu festival held every 12 years.
The Sabarmati River is one of the major west-flowing rivers in India. It originates in the Aravalli Range of the Udaipur District of Rajasthan and meets the Gulf of Khambhat of Arabian Sea after travelling 371 km (231 mi) in a south-westerly direction across Rajasthan and Gujarat. 48 km (30 mi) of the river length is in Rajasthan, while 323 km (201 mi) is in Gujarat.
The Gomti, Gumti or Gomati River is a tributary of the Ganges. According to Hindu belief, the river is the daughter of Rishi Vashishtha and bathing in the Gomti on Ekadashi can wash away sins. According to the Bhagavata Purana, one of Hinduism's major religious works, Gomti is one of the five transcendental rivers of India. The rare Gomti Chakra is found there.
The East Kolkata Wetlands, are a complex of natural and human-made wetlands lying east of the city of Calcutta (Kolkata), of West Bengal in India. The wetlands cover 125 square kilometres and include salt marshes, and agricultural fields, sewage farms and settling ponds. The wetlands are also used to treat Kolkata's sewage, and the nutrients contained in the wastewater sustain fish farms and agriculture.
The ongoing pollution of the Ganges, the largest river in the Indian subcontinent, poses a significant threat to both human health and the environment. The river supplies water to approximately 40% of India's population across 11 states and serves an estimated 500 million people—more than any other river in the world.
In 2020, 97.7% of Indians had access to the basic water and sanitation facilities. India faces challenges ranging from sourcing water for its megacities to its distribution network which is intermittent in rural areas with continuous distribution networks just beginning to emerge. Non-revenue water is a challenge.
There are multiple environmental issues in India. Air pollution, water pollution, garbage, domestically prohibited goods and pollution of the natural environment are all challenges for India. Nature is also causing some drastic effects on India. The situation was worse between 1947 through 1995. According to data collected and environmental assessments studied by World Bank experts, between 1995 through 2010, India has made some of the fastest progress in addressing its environmental issues and improving its environmental quality in the world. However, pollution still remains a major challenge and opportunity for the country.
Water management in the Metropolitan Region of São Paulo, Brazil faces several challenges, including pollution of drinking water reservoirs that are surrounded by slums, water scarcity leading to conflicts with the Campinas Metropolitan area to the north, inefficient water use, and flooding. The sprawling Metropolitan Region of São Paulo (MRSP) with close to 20 million people is the seventh most populous urban area in the world and the economic, financial and technical hub of Brazil. The main stakeholders in water management in MRSP are the state government, the state water and sanitation utility Sabesp and 39 municipal governments. A basin committee for the Alto Tietê basin, which covers the entire area of the MRSP and supplies half of its water, brings together all stakeholders. It has drawn up two master plans for the management of water resources in the basin. The first was approved in 2003 and focused on urban sprawl. The second was approved in 2009 and focused on water use conflicts.
Environmental problems in Delhi, India, are a threat to the well-being of the city's and area's inhabitants as well as the flora and fauna. Delhi, the ninth-most populated metropolis in the world (second largest if the entire NCR includes especially Faridabad and Gurugram– Haryana, is one of the most heavily polluted cities in India, having for instance one of the country's highest volumes of particulate matter pollution. The air quality index of Delhi is generally Good, Satisfactory and Moderate levels between March and September, and then it drastically deteriorates to Poor, Severe, or Hazardous levels in five months between October and February, due to various factors including stubble burning, burning of effigies during Vijayadashami, bursting of firecrackers burning during Diwali and cold weather. In May 2014 the World Health Organization announced New Delhi as the most polluted city in the world.
The Ramnadi is a river in Pune District and is a tributary of the Mula. It originates in the Sahyadris near Khatpewadi, north-west of Pune city. The river flows through the Bhugaon, Bhukum, Bavdhan, Pashan, Baner and Aundh areas of Pune city. It is defined as a brook by the Pune Municipal Corporation (PMC).
The Najafgarh drain or Najafgarh nalah, which also acts as Najafgarh drain bird sanctuary, is another name for the northernmost end of River Sahibi, which continues its flow through Delhi, where it is channelized, and then flows into the Yamuna. Within Delhi, due to its channelization for flood control purposes, it is now erroneously called "Najafgarh drain" or "Najafgarh nullah." It gets this name from the once famous and huge Najafgarh Jheel (lake) near the town of Najafgarh in southwest Delhi and within urbanized Delhi. It is the Indian capital's most polluted water body due to direct inflow of untreated sewage from surrounding populated areas. A January 2005 report by the Central Pollution Control Board classifies this drain, with 13 other highly polluted wetlands, under category ‘'D'’ for assessing the water quality of wetlands in wildlife habitats.
Najafgarh Lake, Najafgarh Marsh or Najafgarh Jheel, fed by Sahibi River, used to be a vast lake in the south west of Delhi, near the town of Najafgarh, from which it takes its name. It was connected to the river Yamuna by a natural shallow nullah or drain called the Najafgarh nullah. However, after the 1960s the Flood Control Department of Delhi kept widening the Najafgarh drain. The reason provided by the department was saving Delhi from floods. This widening led to the eventually drainage of, the once huge and ecologically rich, Najafgarh lake. Rainwater accumulating in the Najafgarh lake or jheel basin had been recorded to have occupied more than 300 square kilometres (120 sq mi) in many years before its draining.
Najafgarh drain bird sanctuary(proposed)and wetland ecosystem is composed of the wetland ecosystem and wildlife habitat on several kilometres of the Najafgarh drain or nullah which passes through rural southwest Delhi in India's capital territory. It includes the portion draining the depression or basin area that formed the once famous but now completely drained Najafgarh lake or Najafgarh jheel.
The Central Pollution Control Board (CPCB) of India is a statutory organization under the Ministry of Environment, Forest and Climate Change (Mo.E.F.C.C.). It was established in 1974 under the Water Act, 1974. The CPCB is also entrusted with the powers and functions under the Air Act, 1981. It serves as a field formation and also provides technical services to the Ministry of Environment and Forests under the provisions of the Environment (Protection) Act, 1986. It coordinates the activities of the State Pollution Control Boards by providing technical assistance and guidance and also resolves disputes among them. It is the apex organization in country in the field of pollution control, as a technical wing of MoEFCC. The board is led by its chairperson appointed by the Appointments Committee of the Cabinet of the Government of India. The current acting chairman is Shri Tanmay Kumar IAS and the Member Secretary is Bharat Kumar Sharma.
Save Ganga Movement is a widespread Gandhian non-violent movement supported by saints and popular social activists across the Indian States Uttar Pradesh and Bihar in support of a free Ganga. The movement is supported by Ganga Seva Abhiyanam, Pune-based National Women's Organisation (NWO) besides those of many other like-minded organisations and with the moral support from many religious leaders, spiritual and political, scientists, environmentalists, writers and social activists. Ganga Calling – Save Ganga is another such campaign supported by Indian Council for Enviro-Legal Action (ICELA).
Water scarcity in India is an ongoing crisis that affects nearly hundreds of million of people each year. In addition to affecting the huge rural and urban population, the water scarcity in India also extensively affects the ecosystem and agriculture. India has only 4/100% of the world's fresh water resources despite a population of over 1.4 billion people. In addition to the disproportionate availability of freshwater, water scarcity in India also results from drying up of rivers and their reservoirs in the summer months, right before the onset of the monsoons throughout the country. The crisis has especially worsened in the recent years due to climate change which results in delayed monsoons, consequently drying out reservoirs in several regions. Other factors attributed to the shortage of water in India are a lack of proper infrastructure and government oversight and unchecked water pollution.
Ravindra Kumar Sinha is a Padma Shri awarded Indian biologist and environmentalist. He served as Vice-Chancellor of Shri Mata Vaishno Devi University from 2019-2023 and also served in Nalanda Open University. Previously he was the Head of the Department of Zoology at Patna University, and is a pioneer researcher and wildlife conservationist, famous for his efforts for the conservation of Gangetic Dolphins, he is popularly known as the "Dolphin Man of India".
The Palla barrage is a barrage located in Palla on the Yamuna-Faridabad canal in Faridabad district of Haryana state in India. This irrigation canal runs to the west of Yaumna through Fridabad, Palwal, Mathura and Agra districts where it terminates in the farms. Palla, Faridabad is not to be confused with Palla, Delhi, a Yamuna pollution monitoring station 23 km upstream of Wazirabad barrage.
