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 …

Salmon in trouble

Although Canada's west coast is known for disputes over the Pacific salmon, wild salmon in the north Atlantic Ocean and farm-raised salmon have been making headlines. The salmon population in the North Atlantic dropped to 114,000 mature fish in 1998, its lowest point ever. Meanwhile, salmon farmers in the Canadian …

Beetles sniff out forest fires

A species of beetle could do for fire fighters what 'sniffer' dogs have done for policemen - sniff out forest fires and even help protect storehouses and public buildings from fire, according to German researchers.

Subterranean farmers

one of the most important chapters in the story of human development began 10,000 years ago, when human beings, through trial and error, discovered agriculture. A steady supply of food brought them security and stability, and soon our primitive forefathers abandoned their nomadic, chaotic life to settle down. Since then, …

Killer cornered

allan Walker and his colleagues at Horticulture Research International, a British government-owned research agency in Warwickshire, uk , have discovered a strain of bacteria that degrades phenylureas, the most widely used herbicide family in Europe. Spraying the phenylureas -eating bacteria on to the soil could soon destroy these herbicide that …

Rains for Mexico

mexico City, the most polluted city on the planet, is considering radical methods to clean up its act. Travellers to Mexico's capital city often fail to see it from air as it is usually shrouded by smog throughout the year. This has cost the city dearly, with many of its …

Blessed are the meek

researchers based in the us and Panama claim that the tropical rainforests' rich diversity can be traced to a scarcity of seeds and to the process through which young plants fill in gaps as older, mature trees die. Their observations, based on a15-year study of over 300,000 trees may finally …

Better than the best

Organic fertiliser-based agricultural management systems

Plankton warming

A switch in the species of phytoplankton dominating the Southern Ocean off Antarctica could accelerate global warming. During an expedition to the Ross Sea, a team led by Kevin Arrigo of the US National Aeronautics and Space Administration's (NASA) Goddard Space Flight Center near Washington DC, found that diatoms dominated …

Judge halts Yellowstone microbe deal

A federal judge has suspended Yellowstone National Park's unique contract with researchers who want to use microbes from the park's hot springs for commercial purposes. U.S. District Judge Royce C. Lamberth in the District ordered the National Park Service to first conduct an environmental study of the potential impact on …

Sticky problems solved with Japanese cedar bark

"Necessity is the mother of invention"--that old maxim proved correct in the case of a group of Kyushu-based researchers who made it their mission to come up with an effective countermeasure to oil slicks that ooze from grounded tankers. Researchers at the Oita Industrial Research Institute in Oita Prefecture have …

Crab trouble

though called a "crab', the horseshoe crab is not really one in essence. It derives its name from shape of its shell, which closely resembles a horse's hoof. While most crabs have two pairs of antennae, a pair of mandibles or jaws and five pairs of legs, the horseshoe crab …

Shells for safer seas

discarded oyster shells are to be used to clean household wastewater in a prototype plant being built in Japan. The plant will purify water that would otherwise pollute local beaches. "Oyster shells harbour large numbers of anaerobic and aerobic microbes on their surfaces,' says Toyokuni Asahina, one of the plant's …

Hair begets heirs

As it turns out, human beings are not the only species sentimental about hair growth. Recent research has revealed that female wolf spiders usually find their male counterparts with hairy legs very attractive. Researchers based in the US think that the tufts of hair on the male spiders' legs may …

New house? Will dance

US-based researchers have discovered how a swarm of honeybees functions as a single collective brain while choosing a new home. US biologists say scouting bees, after returning from their individual search operations, dance to indicate the location of the prospective site as well as its quality. Gradually, only a single …

Firms to make cement from burned garbage

Major cement manufacturer Taiheiyo Cement Co., in collaboration with Mitsui and Co., Ltd., is planning to produce Japan's first environmentally friendly cement, made with the remains of garbage incinerated in Chiba Prefecture, it was learned Tuesday. The main constituent of the cement will be the ashes of garbage dumped by …

Low-emission engines

The power generation world is showing increasing interest in some of the latest Rolls-Royce industrial gas turbine engines, which combine high efficiency with low emissions, spelling better news for the environment.

Oyster shells as cleansers of wastewater

Once considered a useless waste product, oyster shells are gaining a reputation as an environment-friendly wastewater cleanser. An experiment launched five years ago in a town in Miyagi Prefecture, Japan has shown that the shells make very cheap, effective water purifiers. A 450-meter section of a 10-kilometer-long drainage canal running …

Oil-eating microbe discovered

A team of researchers in Osaka, Japan has discovered a microbe that eats waste animal and vegetable oils, a significant cause of water pollution. Following five years of research, the group of scientists at the Osaka Municipal Technical Research Institute found a way to purify water by using the microbe. …

Cancer cells help speed up water tests

A research group from the University of Tokyo's Institute of Industrial Science said it has developed a new, fast way to perform acute-toxicity tests on samples of lake and river water. By evaluating the samples using cultured lines of human cancer cells kept frozen until use, the experiments can be …

It may be legal...

... but is it sustainable? The Canadian government has once again set its usual quota for killing seals in 1999 after rejecting evidence suggesting that the country's annual harp seal cull is unsustainable. In 1999, like in the past two years, Canadian seal hunters will be allowed to kill as …

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