Environmental Science

Order of the National Green Tribunal regarding deterioration of Nayar river, Uttarakhand, 05/06/2025

Order of the National Green Tribunal in the matter of In Re: News Item titled "Nayar river is vanishing - a yatra reveals conservation goes beyond science and policy" appearing in ‘The Down To Earth’ dated 03.06.2025. The original application was registered suo-motu based on the news item titled "Nayar …

Dust-retaining chute

A British company has developed a loading chute that eliminates dust emission and minimises degradation and segregation of bulk materials, such as cement, seen here being loaded on to a ship.

Recycling efforts starting to focus on ways to deal with animal waste

Researchers from Obihiro University of Agriculture and Veterinary Medicine have teamed up with a water works equipment manufacturer in Hokkaido to turn cow manure into a material that can be used as snow-melting agent and as a printing ink.

Bear minimum

isolation kills. And this time it is killing bears in Spain. For one of Spain's two main populations of brown bears, extinction looms large as a very real possibility. And according to researchers, this is nothing but the result of an abnormal isolation from its compatriots for several decades. Spain …

For that feather touch

poultry just discovered a new feather in its cap: that it can help make this polluted world a little cleaner. It came as a pleasant surprise when us-based scientists recently announced that chicken feather can help clean up those ugly oil slicks quickly, efficiently and - most important of all …

Dying wings

Hundreds, perhaps, even thousands of migratory birds are dying in the eastern US and Canada due to salmonella bacteria, the US National Wildlife Health Center (nwhc) announced recently. The organisation has found the bacteria in dead birds form over American 10 states since January this year and is in the …

Fume-eating plants help clear the air

A roadside system in which flower beds purify vehicle exhaust emissions is being developed by the Bangkok Metropolitan Administration.The biological earth-air purifier draws fumes into a chamber below the flower bed where soil and roots extract hazardous gas.It has been installed in front of the Marble Temple near the royal …

A harvest of heavy metal

Genetically altered plants that absorb toxins can be used to clean contaminated industrial sites : a report.

Purified water from thin air

A local company in Wellington has claimed a technological breakthrough with a process that can produce clean drinking water out of thin air. Watermaster Technologies said its Airwell 2000 technology could alleviate drinking water shortages anywhere in the world. Developed jointly with Canterbury University, the Airwell 2000 could make up …

Safe as milk

Ethyl lactate, an ecologically benign chemical, is all set to replace dangerous solvents

Safe as milk

a simple substitute made from ingredients found in a glass of wine and a milk bottle could have easily replaced the hazardous organic chemicals used in everything from paint thinners to solvents years ago, say scientists. But this substitute, till now, was far too expensive to be an economically-feasible alternative …

Back from plant heaven

cycads are, perhaps, some of the oldest, rarest and most endangered plants in the world right now. As their habitats have been destroyed through the years, these plants have acquired the status of collector's items, leading to an unprecedented rise in the demand for rare species. The recent outcry against …

Breaking the ice

A large section of an ice shelf on the Antarctic Peninsula has broken away as a possible result of global warming, say scientists at the National Snow and Ice Data Center (NSIDC) based at the University of Colorado, USA. Recent satellite images show that a section about 40 km-long and …

Salt of the Earth

Scientific institutions from Mexico and the United States are conducting an environmental impact study to see if a proposed salt mine in Baja California would disrupt one of the last grey whale breeding habitats in the world. The Mexican government and Mitsubishi Corporation want to construct a salt mine in …

Fire and Ice

An ice-breaking ship, research airplanes, space satellites and an international team of scientists are converging in the Alsakan Arctic to learn more about global climate change through the study of clouds and radiation of the Sun during the spring and summer. The Fire Arctic Cloud Experiment (FIRE/ACE) is studying a …

Toxic-waste solution may grow on trees

Hokkaido Forest Products Research Institute has developed a process in which conifer leaves remove heavy metal from water.

On cloud nine

algae , bacteria and fungi play an important role in cloud formation, helping in condensation of water droplets, a process known as nucleation, under which, water molecules adhere to small microscopic particles. Bill Hamilton, biologist at Oxford University, uk , and Tim Lenton, biologist at East Anglia University, uk , …

Toyota s trees

japan' s largest carmakers, Toyota Motor Corp, has a team of 40 researchers working to come up with plant varieties that can absorb some of the toxic gases emitted by cars. This is Toyota's attempt at dealing with the looming threat of global warming. Toyota also hopes to establish its …

Shrimp farms vs mangroves

Shrimp farms in Latin America produce a quarter of the three million tonnes of shrimp consumed worldwide each year. Consequently, shrimp farmers are destroying the mangrove forests to make shrimp ponds. Mangroves nurture a very delicate ecosystem and serve as important nurseries for many species of fish. They also protect …

Plant to test garbage- to- plastic process

Public and private concerns in the Kyushu region in Southern Japan are joining forces to test the use of raw garbage from homes and restaurants as a raw material for the synthesis of biodegradable plastic. An experimental plant is to be built, after which tests are to be run for …

- EPA offers technology to recover chrome from tannery effluents

The US Environmental Protection Agency (EPA) has offered technology to recover chrome from tannery effluents . The chrome residue in effluents escapes treatments facilities currently available in the country and has been a major problem for the industry and monitoring agencies. The American agency has given the engineering details to …

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