Ecosystems

State of the world’s migratory species

More than a fifth of the world's migrating species are at risk of going extinct as a result of climate change and human encroachment, according to this report by the United Nations. Migratory species globally are facing critical challenges, with nearly half in decline and over 20 per cent threatened …

Environmental sustainability index for Indian states 2009

Latest comparative analysis of environmental achievements , challenges and priorities among Indian states. Provides overall picture of state-level sustainability by aggregating data on states

Does warming have species on the run?

Ecosystems Must Move By 1/4 Mile A Yr To Survive Paris: Land ecosystems will have to move hundreds of metres each year in order to cope with global warming, according to a letter published in the journal Nature. On average, ecosystems will need to shift 420 metres (1/4 mile) per …

Call to determine social status with number of trees planted, not assets

The social status of a person in future should be considered by the number of trees, he planted not by his bank balance or size of his car, stated scientist S Sethuramamlingam. He was speaking at the workshop of Regional Museum of Natural History (RMNH), Bhopal. The event oganised on …

The velocity of climate change

As the climate changes, species will have to move if they are to remain in an area with the same average temperature. Here, this required movement

Yasuni-ITT Initiative: a big idea from a small country

Ecuador is among the countries that are highly vulnerable to climate change. Preventing oil extraction in the Yasun

Pollution killing insects, creating eco-system imbalance: MSU study

Darshana Chaturvedi | TNN Vadodara: The insect diversity of the city has been declining since past couple of years, says a study conducted by researchers from M S University

Tibet body says plateau is warming

The Tibetan Women's Association (TWA) led by Tenzin Dhardon Sharling from Dharamsala is attending the Copenhagen climate summit to highlight the warming of the Tibetan Plateau. The Tibetan plateau, also known as the earth's third pole because of the huge quantities of freshwater stored in its glacial ice, is warming …

Developing national carbon accounting and monitoring system for India's forest - An ecosystem model approach

The Kyoto Protocol has made carbon a tradable commodity which signifies the value of forest carbon budgets and the need for understanding factors influencing them. For measuring future consequences of changes in land usage, current level of carbon emission and future patten needs scientific evaluation, if forest based climate mitigation …

Achieving sustainable development: annual review of development effectiveness 2009

This Annual Review of Development Effectiveness (ARDE) 2009 is being written against the backdrop of a global financial crisis, declining growth, and massive fiscal stimulus efforts to revitalize markets. Demand for greater development support from the World Bank has grown, along with concerns that resources be used effectively and efficiently …

Vegetation distribution and impactof livestock grazing in the Kothi watershed of Kullu District in Himachal Pradesh, India

A study was undertaken in the Kothi watershed of Himachal Pradesh with a view to understand the patterns in vegetation distribution and impact of livestock grazing in the mountain ecosystems of the higher Himalaya. The study results in the documentation of 243 species of vascular plants distributed over 57 families …

Regional training manual on disaster risk reduction for coastal zone managers

This regional manual aims at building the capacity of coastal zone managers to design and implement coastal development projects that enhance protection of lives and livelihoods, while improving environmental quality and protecting ecosystem services. It is intended to be used in regional training courses on disaster risk reduction (DRR) for …

Water world: why the global climate challenge is a global water challenge

This report by SIWI shows why water is critical for climate change adaptation and mitigation. Addresses interrelation of water and climate change in the context of livelihoods, land, ecosystems, transboundary management, energy & gender. This report by Stockholm International Water Institute demonstrates why water is critical for climate change adaptation …

A force to fight global warming

In the tortured history of climate-change negotiations, enlightened thinking has translated into positive action all too rarely. But governments have recently seen the light on a crucial issue: they have recognized the vital role that intact natural ecosystems have in limiting the build-up of atmospheric greenhouse gases.

Costing the Earth

The value of biodiversity must be accounted for, says Pavan Sukhdev. It is time for governments to invest to secure the flow of nature's 'public goods'.

A call to the custodians of deep time

Palaeontologists must model the causes of biodiversity rather than simply cataloguing fossils, says Douglas Erwin, as they curate the only record of ecosystems undamaged by humans.

Helping Brazil help us

No matter how many times you hear them, there are some statistics that just bowl you over. The one that always stuns me is this: Imagine if you took all the cars, trucks, planes, trains and ships in the world and added up their exhaust every year. The amount of …

Impacts of feral horses on a desert environment

Free-ranging horses (Equus caballus) in North America are considered to be feral animals since they are descendents of non-native domestic horses introduced to the continent. We conducted a study in a southern California desert to understand how feral horse movements and horse feces impacted this arid ecosystem. We evaluated five …

Shifts in Lake N:P stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition

Human activities have more than doubled the amount of nitrogen(N) circulating in the biosphere. One major pathway of thisanthropogenic N input into ecosystems has been increased regionaldeposition from the atmosphere. Here we show that atmosphericN deposition increased the stoichiometric ratio of N and phosphorus(P) in lakes in Norway, Sweden, and …

Abiotic gas formation drives nitrogen loss from a desert ecosystem

In arid environments such as deserts, nitrogen is often themost limiting nutrient for biological activity. The majorityof the ecosystem nitrogen flux is typically thought to be drivenby production and loss of reactive nitrogen species by microorganismsin the soil. We found that high soil-surface temperatures (greaterthan 50

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