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 …

Living planet report 2008

Living planet report 2008 looks at the cause and effect relationships which determine the Earth's health. Key to the report is the Living Planet Index, used to map out the state of the world's ecosystems, and the Ecological Footprint. This report also examines the impact of the consumption of the …

Post-Jonglei planning in southern Sudan: combining environment with development

In 2008, the Sudanese and Egyptian governments decided to resume work on the Jonglei Canal project, which had been abandoned for 24 years. This project in southern Sudan plans to by-pass, and thus drain, part of the wetlands of the Bahr al-Jabal and Bahr az-Zaraf rivers into the White Nile. …

Prolonged suppression of ecosystem carbon dioxide uptake after an anomalously warm year

Terrestrial ecosystems control carbon dioxide fluxes to and from the atmosphere through photosynthesis and respiration, a balance between net primary productivity and heterotrophic respiration, that determines whether an ecosystem is sequestering carbon or releasing it to the atmosphere. Global and site-specific data sets have demonstrated that climate and climate variability …

Birds cant keep up with warming

The habitats of wild bird species are shifting in response to global warming, but not fast enough to keep pace with rising temperatures, according to a study. Researchers in France also found that the delicate balance of wildlife in different ecosystems is changing up to eight times more quickly than …

Social rules about dealing with lions in Niger (editorial)

It will be a major problem, if the lion vanishes-goes a popular saying in Moli Haoussa-Gorma village in Niger. Beliefs such as this are significant in making the W National Park amongst the rare strongholds of the African lion. At a time when the lion population is declining alarmingly in …

Oil and gas projects in the Western Amazon: Threats to wilderness, biodiversity, and indigenous peoples

The western Amazon is the most biologically rich part of the Amazon basin and is home to a great diversity of indigenous ethnic groups, including some of the world's last uncontacted peoples living in voluntary isolation. Unlike the eastern Brazilian Amazon, it is still a largely intact ecosystem. Underlying this …

TERI working on Sunderbans project

Pachauri meets West Bengal Chief Minister They discuss impact of climate change on State's ecosystem TERI proposes setting up of climate-related research centre Kolkata: The Energy and Resources Institute (TERI) is working on a project on the Sunderbans delta, a fragile ecosystem now threatened by rising sea-levels, TERI director-general R.K. …

Climate change to cause surge of 'envirogees'

ENVIRONMENTAL disasters from climate change and destruction of ecosystems will create a surge of refugees -- 'envirogees' -- across the planet . Maybe the buzzword will catch on faster and shed some much-needed light on what will become a serious problem, probably by the end of this or the next …

World Resources 2008: roots of resilience - growing the wealth of the poor

World Resources 2008 explores what is necessary to allow such nature-based enterprises to scale up so as to have greater impact

Wetlands and climate change

Climate change poses a threat to all ecosystems. In the case of the wetland ecosystem, not only will the water bodies and their economic benefits be lost; they could directly contribute to climate change by releasing a large amount of trapped greenhouse gases. That assessment from scientists taking part in …

Long-term resistance to simulated climate change in an infertile grassland

Climate shifts over this century are widely expected to alter the structure and functioning of temperate plant communities. However, long-term climate experiments in natural vegetation are rare and largely confined to systems with the capacity for rapid compositional change. In unproductive, grazed grassland at Buxton in northern England (U.K.), one …

Develop a record cell: NWCSO paper

The first-ever biodiversity strategy and action plan of Orissa has called for identification and documentation of critically endangered species and ecosystems of the State. Degradation and fragmentation of the wild habitats is the consequence of all human-related perturbations which have led to loss of species, populations as well as community …

Iceberg threat to Antarctic ecosystem

London: The fragile marine ecosystems of Antarctica are facing a growing risk from icebergs floating freely in coastal waters due to global warming, a research has suggested. A group of scientists from the British Antarctic Survey (BAS) has found that while iceberg scour is a natural phenomenon, the rate of …

Cutting hills: Why and why not

Bangladesh is mainly a deltaic plain of the Ganges and the Brahmaputra river systems. However, we have some tertiary upland in the northwest and some hills and hillocks in the southeastern area. Hills, plains and river basins -- all are created naturally; unfortunately, the mankind realizes their essentiality at least …

Protecting ecosystems from climate change

A new report offers suggestions on how to minimize the impacts of climate change on ecosystems. Climate change is threatening forests, rivers, wetlands, and coral reefs as well as the valuable, life-sustaining services that these ecosystems provide. A report by the U.S. Environmental Protection Agency (EPA) National Center for Environmental …

  1. 1
  2. ...
  3. 103
  4. 104
  5. 105
  6. 106
  7. 107
  8. ...
  9. 117

IEP child categories loading...