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Climate change threatens Indian mangroves
Increase in temperatures, carbon dioxide concentration, rise in sea levels and extreme weather events like cyclones and droughts, are predicted to have deleterious effects on Indian mangroves. Posted on 21 Feb, 2015 07:20 PM

India’s 7500 km coastal line supports nearly 4, 87,100 hectares of mangroves. These unique ecosystems harbour nearly 3985 species of flora and fauna. Due to the increasing effects of climate change, mangrove forests in the country are under serious threat.

What are mangroves?

Sundarban mangrove (Source: Wikimedia Commons)
Groundwater resources race against time
Development and urbanisation have already put pressure on groundwater resources in the fragile Himalayan region. So, what is the current status of groundwater resources of this unique region? Posted on 21 Feb, 2015 12:36 PM

The Himalayas, an important part of the geography of India, extend along the entire Northern and North-Eastern boundary of the country. It spans six Indian States namely, Jammu and Kashmir, Himachal Pradesh, Uttaranchal, West Bengal, Sikkim and a major part of Arunachal Pradesh from west to east.

A view of the majestic Himalayas
Kerala's groundwater contamination source revealed
A study conducted in a village in Kozhikode district of Kerala highlights the need for standards while locating wells to prevent groundwater contamination. Posted on 16 Feb, 2015 09:41 PM

Open wells are one of the most important sources of drinking water, especially in Kerala’s coastal belt. Sadly, recent studies show that as much as 70% of these have been declared unfit due to faecal contamination.

Groundwater quality in Kodiyathur village, Kerala

A view of an open well
Groundwater status : Should we be worried?
Three CGWB reports paint a detailed picture of the groundwater situation in the country. Does the water level continue to decline or has it risen in some areas? Posted on 16 Feb, 2015 09:35 PM

Groundwater, though replenishable, is ultimately a finite resource. Excessive withdrawal leads to depletion of the water stored underground, resulting in serious social, economical and environmental consequences.

Groundwater: A finite source (Source: IWP)
RWH: A tale of two successful states
Rainwater harvesting is a cost effective solution to bridge the gap between water availability and demand. Jodhpur and Goa, areas with low and high rainfall, have shown how. Posted on 16 Feb, 2015 09:11 PM

As the race to bridge the gap between limited water availability and increasing demand for water narrows in India, rain water harvesting has been increasingly recommended in urban areas to harness the available water, rather than relying on expensive and unsustainable means of procuring water.  

Urban Rainwater Harvesting
How do income levels affect water-borne diseases?
There is lack of crucial information on how urban water infrastructure influences and transforms the flow of water leading to the emergence of diseases in the process. Posted on 25 Jan, 2015 05:18 PM

Urban water infrastructure has an important role to play in public health, and includes built networks that facilitate the flow and exchange of water over space.

An illegal settlement (Source: Wikimedia Commons)
State Action Plans for climate change analysed
5 states, which submitted Action Plans on how to tackle climate change in a decentralised manner, have made limited progress due to many reasons including a lack of clarity in recommendations made. Posted on 21 Jan, 2015 06:20 PM

Recent years have shown a growing awareness on the relevance of climate change for India within the government as well as civil society, business and media. India has prepared its National Action Plan on Climate Change amidst growing international pressure to devise domestic climate adaptation strategies.

Mountains in the catchment area of Khadakwasla dam
Swacch Bharat Mission: An opportunity to rethink public toilet governance
Althought the SBM rightly promises to secure the right to sanitation infrastructure and the right to a clean environment, it must take into consideration the sociopolitical realities of Indian cities. Posted on 21 Jan, 2015 06:15 PM

Evidence from India shows that open defecation continues to be common, and that a vast majority of the population from both urban and rural areas continue to have poor access to toilets.

Rural toilet (Source: Sourabh Phadke)
Can GIS rescue South India's deteriorating tank systems?
Eris or tanks in Tamil Nadu, which once provided water for drinking and irrigation, are in disrepair today. Can technology help restore them? Posted on 21 Jan, 2015 10:28 AM

Several lakhs of farming communities in Tamil Nadu depend on the 39,202 tanks spread around the state. These tanks capture the runoff water from the monsoon rainfall that occurs in a short span of time, and also provide water for irrigation and other uses for the community.

However, these water bodies have been degenerating in the recent past due to reasons such as:

Eris/Tanks of Tamil Nadu
Social regulation as a key to sustainable groundwater use
While a knowledge-based approach to groundwater management improves awareness, it does not address issues of equity. Posted on 19 Jan, 2015 11:02 AM

Sustainable management of groundwater continues to be ignored in India although its hydrogeological and socieconomic aspects continue to be studied extensively. Despite recognition of its importance at the policy level, no clear plan of action exists for groundwater management in India. 

A well in Odoor farms, Mangalore
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