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 …

On the tiger`s trail

WHEN Joseph Niepce invented photography in 1816, little did he realise that among the millions of uses his technology would be put to, counting tigers would be one of them! That is precisely what Ullas Karanth has begun to do at Nagarhole National Park near Mysore in Karnataka. (Biological Conservation, …

Foes forever

INSECTS, today make up the vast majority of living organisms. Although insects appeared almost 350 million years ago, they really began to diversify only after flowering plants came on the scene about 150 million years ago. The catalytic role played by flowering plants in the diversification of insects stems from …

Sperm sense

In the animal kingdom, males ofte try to mate with more females an produce more offspring. In man insects, however, the testes weaken by the time the male reaches sexuamaturity resulting in a low sperm count. But, in ant species such a Cardiocondyla nuda, there are two kinds of males …

Killing bites

It takes the right amount of venol from the snake to kill its p I go. Larger the prey, more the venom and vice versa. William Hayes of tho University of Wyoming, US, in a series of laboratory experiment-4 demonstrated that rattlesnakes indeed 'meter' the quantity of venom they inject …

Fig facts

Fig trees are pollinated by fig-wasps who in turn lay eggs in the flower so that wasp babies can grow there. This, however, does not tea to extinction of fig trees as man of the fig flowers that get poll nated escape oviposition. The reason: two kinds of styles, sho …

Noiseless homes

TO COMBAT noise pollution, United Kingdom's (UK) Building Research Establishment (BRE) recently undertook some innovative research aimed at providing noise-insulated dwellings to people. The project includes persuading architects to design houses with considerable insulation against cacophony and finding out construction material that keeps out the maddening noise (Spectrum, No 246). …

Curtailing CFCs

WITH the production of chlorofluorocarbons (CFCs) coming to a slow stop as a consequence of the Montreal Protocol of 1987, efforts are now directed towards its disposal. Large amounts of this ozone depleting chemical are being collected from aerosols, insulation foams and cooling units for its final denouement. Breaking down …

Eggy solutions

In a bid to conserve the endangered sea turtle population, a non-killing method of monitoring chemical pollutants in their tissues has been developed. Earlier, sea-turtles, including loggerhead and green sea turtles, were killed in laboratories to monitor the heavy metal concentrations. Unhatched eggs have has been found to he potentially …

Cleaning petrol pumps, soundly

T MAY soon be possible to clean up oil spills that contaminate the soil in and around petrol pumps, thanks to the efforts of Dutch researchers. Koen Weytingh and his colleagues from the Technical University of Delft and De Ruiter Milieutechnologie in Halfweg, ,he Netherlands, have developed a technique that …

Oiling out pollutants

When oil seeps into water supplies, it is more of a problem than a solution. But a group of American scientists think otherwise. John Hunter and John Cary of the US Department of Agriculture at Fort Collins, Colorado, intend using vegetable oil to help remove nitrate pollution from wells, usually …

Benevolent bacteria

The US Department of Energy's Pacific Northwest Laboratory in Richland, has recruited an army of microorganisms to clean soils and underground water tainted with nitrate and carbon tetrachloride - an industrial solvent that is a suspected carcinogen. In this bioremediation process, native bacteria which can be coaxed into degrading contaminants …

Lucky leap

Biologists have discovered a wealth of new frog species in the rain forests of eastern Madagascar, highlighting the astonishing diversity of life in the tropics and the special importance of Madagascar as a wildlife hotspot (African Wildlife, Vol 4, No 2). At least 106 new frogs and 26 reptiles came …

UV trap

More accurate measurement of ultraviolet rays may now be possible with the development in Britain of a new photodiode detector. UV radiation is the most energetic form of optical radiation and exposure to it is potentially hazardous. Accurate measurement of the LTV radiations from the sun has been made difficult …

Cool City

WHY is a city hotter than its surrounding countryside? The first answer that comes to mind is the availability of open space and trees in the countryside. Now, Haider Taha and his colleagues at the Lawrence Berkeley Laboratory (LBL) in Berkeley, California, and the University of California, Los Angeles, say …

Back to the source

RECYCLED wastewater is no longer the anathema it used to be. Several countries have begun using recycled waste-water for crop irrigation and landscape gardening. Now, researchers are studying the possibility of using treated sewage water for both drinking and ceplenishing fast-depleting aquifers - a water-bearing layer of permeable rock - …

Micturition muddle

A dairr row produces up to 40 litres of urine daily and this is posing a serious threat to the European countryside of moors, bogs and heaths. Scottish scientists have found that the ammonia-rich urine evaporates and adds to the nitrogen content of the atmosphere. This nitrogen accumulates in the …

Fuel from C0<sub>2</sub>

A group of chemists in Switzerland has devised a way to convert Ramospheric carbon dioxide - the main greenhouse gas - into fuel (New Scientist Vol 146, No 1971). The scientists first blew carbon dioxide saturated with water into a matrix of glass wool coated with titanium dioxide, which acts …

Thinning heavens

European scientists have found evidence of ozone levels over the Arctic declining by about 50 per cent between the altitudes of 16 and 18 km (Nature, Vol 374, No 6522). The Second European Stratospheric Arctic and Mid-latitude Experiment also revealed that ozone levels fell by about 0.7 per cent per …

Global Conference on Energy, Soil, Water, Air and Environment Conference 11-13 December 2014 Dubai, UAE

The conference aims to gathering of professors, environmental scientists, engineers, scientists, students, Energy, soil, and water manufacturers, fuel producer and others interested in sharing ideas, knowledge and experiences.

3rd Global Conference on Environmental Studies, 10-12 April 2015, Dubai

Global Conference on Environmental Studies aims to gathering of professors, environmental scientists, engineers, scientists, technologists, planners, managers, innovators, policy makers, students and others interested in sharing ideas, knowledge and experiences. The major objective is to provide a unique environment to sharing innovative practices, cutting-edge research and unique experiences as well …

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