N C America

Order of the National Green Tribunal regarding remedial actions to be taken for abatement of pollution of river Bhadar near Ahmedabad, Gujarat, 09/05/2025

Order of the National Green Tribunal in the matter of Ramdevbhai Samatbhai Sanjva Vs State of Gujarat & Others dated 09/05/2025. The matter related to remedial actions to be taken for abatement of pollution of river Bhadar near Ahmedabad. Gujarat Pollution Control Board (GPCB) has filed the response affidavit, March …

Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago

It has been proposed that fragments of an asteroid or comet impacted Earth, deposited silica-and iron-rich microspherules and other proxies across several continents, and triggered the Younger Dryas cooling episode 12,900 years ago. Although many independent groups have confirmed the impact evidence, the hypothesis remains controversial because some groups have …

A break in the clouds

Clouds and aerosol particles have bedevilled climate modellers for decades. Now researchers are starting to gain the upper hand.

More stable productivity of semi natural grasslands than sown pastures in a seasonally dry climate

In the Neotropics the predominant pathway to intensify productivity is generally thought to be to convert grasslands to sown pastures, mostly in monoculture. This article examines how above-ground net primary productivity (ANPP) in semi-natural grasslands and sown pastures in Central America respond to rainfall by: (i) assessing the relationships between …

Climate change and the selective signature of the Late Ordovician mass extinction

Selectivity patterns provide insights into the causes of ancient extinction events. The Late Ordovician mass extinction was related to Gondwanan glaciation; however, it is still unclear whether elevated extinction rates were attributable to record failure, habitat loss, or climatic cooling. We examined Middle Ordovician-Early Silurian North American fossil occurrences within …

Blowing in the wind

The mysterious Kawasaki disease might cross the Pacific on air currents high in the atmosphere.

Activists ground primate flights

Supply of research monkeys to Western labs under threat as airlines react to animal-rights campaign.

The impact of climate change on global tropical cyclone damage

One potential impact from greenhouse-gas emissions is increasing damage from extreme events. Here, we quantify how climate change may affect tropical cyclone damage. We find that future increases in income are likely to double tropical cyclone damage even without climate change. Climate change is predicted to increase the frequency of …

Spices and herbs as source of Salmonella-related foodborne diseases

Salmonella is a leading cause of foodborne diseases and the role of ready-to-eat products including plantderived food is increasingly recognized. The present survey reviewed recent literature on Salmonella-related outbreaks caused by spices and herbs and on the occurrence of Salmonella in these food matrices. Spices and herbs contaminated with Salmonella …

Payment for environmental services: first global inventory of schemes provisioning water for cities

This new report is a global inventory of identified Payment for environmental services (PES) —water for cities? schemes and —pre PES water schemes? around the world.

Antarctic ozone hole is as big as North America

Washington: The first significant ozone hole above the Antarctic is now as big as North America, scientists have claimed. Spanning about 25 million square kilometers, the ozone hole over the South Pole reached its maximum annual size on September 14, becoming the fifth largest on record, they said. The largest …

Specialization in plant-hummingbird networks is associated with species richness, contemporary precipitation and quaternary climate-change velocity

Large-scale geographical patterns of biotic specialization and the underlying drivers are poorly understood, but it is widely believed that climate plays an important role in determining specialization. As climate-driven range dynamics should diminish local adaptations and favor generalization, one hypothesis is that contemporary biotic specialization is determined by the degree …

Has selection for improved agronomic traits made Reed Canarygrass invasive?

Plant breeders have played an essential role in improving agricultural crops, and their efforts will be critical to meet the increasing demand for cellulosic bioenergy feedstocks. However, a major concern is the potential development of novel invasive species that result from breeders' efforts to improve agronomic traits in a crop. …

Nitisinone improves eye and skin pigmentation defects in a mouse model of oculocutaneous albinism

Mutation ofthe tyrosinase gene (TYR) causes oculocutaneous albinism,type 1 (OCA1), a condition characterized by reduced skin and eye melanin pigmentation and by vision loss. The retinal pigment epithelium influences postnatal visual development. Therefore, increasing ocular pigmentation in patients with OCA1 might enhance visual function. There are 2 forms of OCA1, …

Diversity, loss, and gain of malaria parasites in a globally invasive bird

Invasive species can displace natives, and thus identifying the traits that make aliens successful is crucial for predicting and preventing biodiversity loss. Pathogens may play an important role in the invasive process, facilitating colonization of their hosts in new continents and islands. According to the Novel Weapon Hypothesis, colonizers may …

Barcoding a quantified food web: Crypsis, concepts, ecology and hypotheses

The efficient and effective monitoring of individuals and populations is critically dependent on correct species identification. While this point may seem obvious, identifying the majority of the more than 100 natural enemies involved in the spruce budworm (Choristoneura fumiferana – SBW) food web remains a non-trivial endeavor. Insect parasitoids play …

State of the Paper Industry 2011

The Environmental Paper Network (EPN) publishes the State of the Industry Report as a resource for policy-makers, non-governmental organizations (NGOs), the paper industry, large volume paper purchasers and other stakeholders to monitor key indicators of environmental sustainability in the North American pulp and paper industry. This 2011 installment highlights some …

United plates of America: The making of a new world

The collision of North and South America changed the Earth's climate dramatically – and may have happened far earlier than we thought. http://www.newscientist.com/article/mg21028161.600-united-plates-of-america-the-making-of-a-new-world.html?full=true&print=true

Spatial dynamics of human origin H1 Influenza A virus in north American swine

The emergence and rapid global spread of the swine-origin H1N1/09 pandemic influenza A virus in humans underscores the importance of swine populations as reservoirs for genetically diverse influenza viruses with the potential to infect humans. However, despite their significance for animal and human health, relatively little is known about the …

Hard time for honeybees

Why are bees important to humans? The 20,000 or so species of bees are the principal pollinators of plants, both in gardens and in the wild. If you like having flowering plants around, for the most part you need to have bees around. There is a need to create awareness …

Reactors, residents and risk

A world population analysis reveals the locations that could put the most people in danger should a nuclear accident occur. http://www.nature.com/news/2011/110427/full/472400a.html

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