A simple, low-cost solar water purifier (SWP) for rural households, which does not require electricity or waste precious water has been developed. The SWP consists of four tubular solar water heaters attached to a manifold. Non-potable water is filled in the SWP after filtering with four-layered cotton cloth and heated in the stagnation mode by solar energy to make it potable. The cost of the SWP is around Rs 2500–3000 (~US$ 40–50) and is so simple that any small rural workshop can fabricate it. In large-scale production it is envisaged that the cost can come down to Rs 1500. 

To curb illegal mining in Odisha, all mineral transporting trucks have been put under GPS surveillance and the roads as well as mines have been geo-referenced.

Nature has created excellent technologies around us, and as such, it is the chief mentor to humans on creativity and technology development. Nature uses fibre as a building block – natural structures like wood, bamboo, bone, muscle, etc. all have fibrous structure. Fibre spinning and weaving technologies are available in nature since time immemorial. Nature has also demonstrated sophisticated technologies useful in the development of technical textiles like functional surfaces, camouflage, structural colour, thermal insulation, dry-adhesion, etc.

Irrigated agriculture is placing increasing pressure on finite freshwater resources, especially in developing countries, where water extraction is often unregulated, un-priced and even subsidized. To shift agriculture to a more sustainable use of water without harming the food security and livelihoods of hundreds of millions of smallholders, substantial improvements of water use efficiency will be required.

The Indian dream should not be about 'some Indians' doing well, but 'India' doing well. Making high technology work for the rich is easy. Can Indian scientists make high technology work for the poor? (Editorial)

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Participatory technological Innovations for drinking water security in alluvial flood plains of North Bihar presentation by by Eklavya Prasad, Megh Pyne Abhiyan, Bihar at Centre for Science and Environment (CSE) book launch of Rising to the Call - Good Practices of Climate Change Adaptation in India at IHC, New Delhi.

Bank filtration (BF) has emerged as an economical and sustainable water pre-treatment technology for drinking water supply. In this method, subsurface water of a water body moves into the well by seepage. BF wells adjacent to a river or lake pump the stored groundwater abstracted from the surface through aquifers. Chemical and biological contaminants such as turbidity, microbes, dissolved chemicals and natural organics are removed by the channel of aquifers present in the area.

Every year, the SEED Awards select innovative start-ups working on social and environmental causes in the developing world. From solar-based lighting
to clean cooking stoves, check out how these 41 winners from Africa, Asia and South America are contributing to their communities.

A set of Guidelines on ‘Integrating science into humanitarian and development planning and practice to enhance community resilience’ has been developed by Melanie Duncan at University College London in collaboration with a number of contributors.

New Delhi : Farmers from across the country protested against recommendations of the Technical Expert Committee (TEC) at Jantar Mantar on Thursday.