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Smart ways to green cities: Kolkata shows the way

Last Updated: Monday, April 21, 2014, 18:37

From reclaiming parks and open spaces to promoting carpools and empowering rag-pickers to manage waste -- denizens of this eastern metropolis are pitching in to make the city green.

Waste sulphur to produce cheap infra-red devices

Last Updated: Friday, April 18, 2014, 16:45

In a major breakthrough, scientists have found that waste sulphur can be transformed into cheap plastic lenses for infra-red devices, including night-vision goggles.

Astronauts` pee to get recycled into clean water

Last Updated: Thursday, April 10, 2014, 20:03

In between the news about water on Mars, clues of life on Jupiter or new stars being formed at our galaxy`s edge, there is a less glamorous side of space exploration: what to do with astronauts` urine!

Waste food affecting bird health: Bird lovers

Last Updated: Thursday, April 10, 2014, 19:57

Birds of different species in the national capital region, that is home to over 500 avian species, are suffering because of the waste food being fed to them, as it is against their dietary habits, experts said here.

Papermaking waste could be safer, greener alternative to BPA

Last Updated: Tuesday, March 18, 2014, 17:00

Researchers have said that a waste product from making paper could yield a safer, greener alternative to the potentially harmful chemical BPA, which is used in many plastics.

Safety lapses rapped after US nuclear plant fire

Last Updated: Saturday, March 15, 2014, 11:16

A fire which sparked the evacuation of a major underground US nuclear waste plant last month was preventable, according to a report out Friday highlighting safety lapses at the site. 

How 3D printer can help you protect environment

Last Updated: Friday, March 07, 2014, 00:22

Are you going to dump your old milk jug into the trash can again? Wait, as this milk jug can not only help you save a lot of money but also help preserve the environment.

Everest climbers will be asked to bring down waste

Last Updated: Monday, March 03, 2014, 19:13

In a bid to clean Mt. Everest of waste accumulated over decades of climbing, the Nepal government has introduced a new provision -- effective the coming spring season -- according to which every climber will have to bring down at least eight kg of garbage to base camp while returning from the expedition, an official here said Monday.

Car tyres may purify wastewater in future

Last Updated: Saturday, March 01, 2014, 00:06

Rubber granulate made from end-of-life car tyres may in future lend itself to applications such as wastewater treatment, say researchers.

KMC to develop second waste disposal ground at Rajarhat

Last Updated: Thursday, February 27, 2014, 20:35

With city`s only solid waste disposal ground at Dhapa becoming overburdened, the Kolkata Municipal Corporation (KMC) has found a plot at Rajarhat New Town for setting up its second one which will also generate energy.

Team to probe event at US nuclear site

Last Updated: Friday, February 21, 2014, 07:56

The US Department of Energy says it has appointed a team to investigate the detection of radiation in and near a southeastern New Mexico facility that`s the nation`s only underground nuclear waste repository.

Urban bees turning to plastic waste to build hives

Last Updated: Wednesday, February 12, 2014, 13:51

Ever heard of bees who use plastic bags and plastic building materials to construct their nests? There are some and this shows how they have adapted to the human world with time.