HomeAboutActivitiesMapsPhotosPublicationsNews
 
Home >> Land

Tag: Land

Ability of countries to support their citizens from their own environment Ability of countries to support their citizens from their own environment
The Ecological Footprint measures the amount of productive land area needed to support a nation’s consumption and waste. This indicator shows that in many countries, as well as for the planet as a whole, the demand for natural resources, or the 'ecological capacity', exceeds the amount available. Countries that are not able to support their national consumption with their own natural resources are running at an 'ecological deficit'. Therefore the...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
3
Emissions due to solid waste disposal on land Emissions due to solid waste disposal on land
Landfi ling is the most common waste management practice, and results in the release of methane from the anaerobic decomposition of organic materials. Methane is around 20 times more potent as a GHG than carbon dioxide. If the disposal of organic matter were to be decreased (for example by composting or incineration) it would be possible to reduce the amount of methane emissions. However, landfill methane is also a source of energy, and some lan...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
2
Emissions of CO2 per capita 1990 (selected countries) Emissions of CO2 per capita 1990 (selected countries)
The graph shows emissions of CO2 per capita 1990. CO2 can be emitted as byproduct from the use of fossil fuel, by combustion, land-use conversion and cement production. Atmospheric concentrations of CO2 are increasing, and it is indicated that this contributes to global warming and climate change.
28 Sep 2005 - by UNEP/GRID-Arendal
3
Global soil degradation Global soil degradation
Overview of the state of global soil degradation in the world. The loss of arable land has been caused by a number of factors, many or most of which are tied to human development. The primary causes are deforestation, overexploitation for fuelwood, overgrazing, agricultural activities and industrialization.
06 Nov 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
4
Trends in fertilizer use Trends in fertilizer use
Shows estimated growth in fertilizer use around the world. Compares statistics from 1959-1960, 1989-1990 to the prediction of 2020. Published in, 'GESAMP Report and studies number 71, Protecting the oceans from land-baesd activities...'
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
2
The Antarctic convergence The Antarctic convergence
The Antarctic convergence represents an important climatic boundary between air and water masses, and is also an approximate boundary for the Southern Ocean, surrounding the Antarctic continent. The water around the land mass is cold and with a slightly lower salinity than north of the convergence zone. The area is also rich in nutrients, providing a key support for the ecosystems in the Southern Ocean.
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
4
CO2 emissions from industrial processes and land use change CO2 emissions from industrial processes and land use change
2 thematical maps: (1) CO2 emissions from industrial processes (http://www.grida.no/climate/vital/09.htm): This map depicts the unequal distribution of industry in the world. The significant part of carbon dioxide emissions comes from energy production, industrial processes and transport. The industrialised countries consequently must bear the main responsibility of reducing emissions of carbon dioxide. (2): CO2 emissions from land use change.(...
28 Sep 2005 - by UNEP/GRID-Arendal
4
Deforestation in Rondonia (Brazil) in the nineties Deforestation in Rondonia (Brazil) in the nineties
The graph shows deforestation in Rondonia, Brazil. Brazil covers more than one quarter of the worlds tropical forests. Since 1980 the deforestation has steadily increased. Deforestration can occur as a result of the clearing of large areas for agricultural purposes, commercial logging and the construction of towns or dams. Please be advised that this graphic is likely outdated.
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
4
Trends in natural disasters Trends in natural disasters
With growing population and infrastructures the world’s exposure to natural hazards is inevitably increasing. This is particularly true as the strongest population growth is located in coastal areas (with greater exposure to floods, cyclones and tidal waves). To make matters worse any land remaining available for urban growth is generally risk-prone, for instance flood plains or steep slopes subject to landslides. The statistics in this graphic r...
29 Nov 2007 - by Emmanuelle Bournay, UNEP/GRID-Arendal
4
Acidification due to climate change - impacts for oceans and coral reefs Acidification due to climate change - impacts for oceans and coral reefs
As carbon concentrations in the atmosphere increase from land use changes and emissions from fossil fuels - so do concentrations in the ocean, with resultant acidification as a natural chemical process. The skeletons of coldwater coral reefs may dissolve, perhaps already within a few decades. The impacts will be greatest at high latitudes. This will have an impact on all marine organisms with calcerous shells and body parts, in addition to coral ...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
Freshwater withdrawal in agriculture, industry and domestic use Freshwater withdrawal in agriculture, industry and domestic use
The agricultural sector is by far the biggest user of freshwater, primarily for irrigation of arable land. This graphic shows the relative percentages of water use by the agricultural, industrial and domestic sectors in the countries of the world in 2000.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
4
Fish diversity in freshwater systems Fish diversity in freshwater systems
Although freshwater ecosystems such as rivers, lakes and wetlands occupy less than 2% of the Earth's total land surface, they provide a wide range of habitats for a significant proportion of the world's plant and animal species. This graphic explains which areas of the world have high and low populations of fish species and of endemic fish.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
2
Trends in marine and freshwater populations Trends in marine and freshwater populations
The Marine Species Population Index provides an assessment of the average change over time in the populations of 217 species of marine mammals, birds, reptiles, and fish. The index represents the average value of six regional ocean indices. More pronounced declines are seen in the southern oceans, which is attributed to the fact that major losses and degradation of marine ecosystems in the industrialised world took place prior to 1970. Marine sp...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
3
Industrial areas and seasonal zones of oxygen-depleted waters Industrial areas and seasonal zones of oxygen-depleted waters
This graphic illustrates that there is a strong correlation between the world's industrial areas and the areas in which seasonally oxygen-depleted waters occur. The accompanying text explains some of the effects of land-based activities on the marine environment.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
3
River runoff by continent, 1921-1985 River runoff by continent, 1921-1985
River runoff represents the accumlated water, from preciptation and meltwater, that feeds into rivers that feeds into seas. The estimated annual figures in this graphic is what volume of water that ends up in the World Ocean. Factors influencing this volume is primarily the area that drains (e.g. area of continent), precipitation and evaporation. Tropical regions typically exhibit greater river runoff volumes. The Amazon carries 15% of all the wa...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
3
Arctic, topography and bathymetry (topographic map) Arctic, topography and bathymetry (topographic map)
The Arctic represents the northermost area of the World, the Arctic Ocean and the land areas that surrounds it. The region is characterized but cold temperatures, and ice and snow. The summers are short, but with long periods of daylight (midnight sun). The winters are long and cold and with periods with no sun (polar night). The Arctic Ocean is one basin that is mostly covered by sea ice, and is connected to the Pacific and Atlantic Oceans. The ...
01 Oct 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
3
Land cover - Baltic Sea region (BALANS) Land cover - Baltic Sea region (BALANS)
The Baltic Sea region is covered by primarily forested land and cropland. This land cover map, delineated for the Baltic Sea drainage basin, is using the dataset prepared through the BALANS project, and represents the situation around year 2000.
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
Top 20 greenhouse gas emitters Top 20 greenhouse gas emitters
Total greenhouse gas emissions and million tonnes of CO2 equivalent emitters including land use change and forestry for various worldwide countries.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
4
Land cover changes in desert areas 1700,1900,2000 and 2050 Land cover changes in desert areas 1700,1900,2000 and 2050
The main land use change in desert areas has been the conversion of relatively barren drylands for agricultural needs, partially through irrigation. The conversion has historically primarily been to use the land for grazing, but the 2050 scenario suggests that small areas on the fringes of deserts will be converted to cropland. The model otherwise predicts modest changes for 2050.
06 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
5
Emissions of CO2 in Norway, 85-95 Emissions of CO2 in Norway, 85-95
The graph shows emissions of CO2 in Norway from 1985 to 1995 and estimates future emissions from 1995 to 2010. CO2 can be created by use of fossil fuel, by land-use convertion, combustion or cement production.
12 Feb 2006 - by UNEP/GRID-Arendal
3
Previous | 1 2 3 4 5 6 7 8 9 | Next