HomeAboutActivitiesMapsPhotosPublicationsNews
 
Home >> Land

Tag: Land

Global soil degradation Global soil degradation
In many parts of the world natural resources have been treated as though unlimited, and totally resilient to human exploitation. This perception has exacerbated the conflicting agricultural demands on natural capital, as have other exploitative commercial enterprises. Both have affected local cultures and had undesirable long-term impacts on the sustainability of resources. The consequences include: land degradation (about 2,000 million ha of lan...
03 Jan 2008 - by Philippe Rekacewicz, UNEP/GRID-Arendal
4
Natural ecosystem conversion Natural ecosystem conversion
It is clear that much land needs to be kept for agricultural use but it is also possible that the area required for food production will stabilize in the future.
03 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
4
Radiation from Chernobyl Radiation from Chernobyl
What do the Chernobyl disaster, the Three Gorges dam in China and the spread of the Sahel have in common? In each case natural and manmade influences have forced thousands, sometimes millions of people, to leave their land or country of origin.
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
5
Environmental trends Nordic countries (slide 4) Environmental trends Nordic countries (slide 4)
The graph shows environmental trends in Nordic countries part 4. It illustrates positive and negative development in Nordic countries within areas such as timber resources and agricultural land resources.
13 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
3
CO2 air emissions by sources in 1995 CO2 air emissions by sources in 1995
The graph shows CO2 air emissions from selected countries by various sources in 1995. Among the anthropogenic sources of CO2 air emissions are fossil fuel combustion, cement production and land-use conversion.
13 Feb 2006 - by Emmanuelle Bournay, Philippe Rekacewicz, UNEP/GRID-Arendal
4
Natural and industrial disasters Natural and industrial disasters
Some places are more prone to disaster than others. But that does it take to turn a cyclone into a disaster in one place and just a climatic event somewhere else? The main reasons are obvious enough. Economically deprived people living in shacks are more likely to suffer from any calamity. Rich countries may have more to lose financially, but they also have more resources for anticipating hazards. There are many ways of determining vulnerability,...
01 Feb 2006 - by Emmanuelle Bournay, UNEP/GRID-Arendal
4
Arable land in the Baltic Sea region Arable land in the Baltic Sea region
Ratio of arable land out of total land use in the Baltic Sea drainage basin. Agriculture is one of the main contributors to the nutrient (in this case, primarily nitrogen) influx into the Baltic Sea, and thus a main driver for the eutrophication problems in the sea. The displays the situation at approximately 1990.
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
2
Pasture Land - Baltic Sea drainage basin Pasture Land - Baltic Sea drainage basin
Ratio of pasture land total land use in the Baltic Sea drainage basin. Agriculture is one of the main contributors to the nutrient (in this case, primarily nitrogen) influx into the Baltic Sea, and thus a main driver for the eutrophication problems in the sea. The displays the situation at approximately 1990.
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
3
Wetlands in the Baltic Sea drainage basin (BALANS) Wetlands in the Baltic Sea drainage basin (BALANS)
Percentage of wetlands out of total land area for the Baltic Sea drainage basin. The ratios have been estimated from various sources, and resembles the situation at approximately 2000, and is calculated from the BALANS data.
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
5
World development: health and economy World development: health and economy
By looking more closely at the regions we can see that the situation in the world is quite diverse. This chart portrays the status of development with two important parameters, health and economy. Regions, like Sub-Saharan Africa or the Commonwealth of Independent States (former Soviet Republics) are quite spread out widely in the diagram, in both dimensions. Worth noting is the countries far from the imaginary line towards the top right corner....
20 Sep 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
5
Temperature trends and projections Temperature trends and projections
The global average surface temperature has increased over the 20th century by about 0.6 degrees Celsius. This increase in temperature is likely to have been the largest for any century in the last 1000 years. Evidence from tree ring records, used to reconstruct temperatures over this period, suggests that the 1990s was the warmest period in a millennium. It is very likely that nearly all land areas will warm more rapidly than the global average, ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
4
CO2 emissions from industrial processes and land use changes CO2 emissions from industrial processes and land use changes
Shows the different levels of CO2 emissions from industrial processes and land use changes from different regions. The major greenhouse gases are included within six sectors: Energy; Industrial Processes; Solvent and Other Product Use; Agriculture; Land Use Change and Forestry; and Waste. Contributing to emissions Historically the developed countries of the world have emitted most of the anthropogenic greenhouse gases. The U.S. emits most in t...
17 May 2005 - by UNEP/GRID-Arendal
4
CO2 emissions in 1990 and 2000 Latin America and selected countries CO2 emissions in 1990 and 2000 Latin America and selected countries
A comparison of the total level of CO2 emissions from Latin America compared to selected countries. Emissions from Latin America and Caribbean increased more than the world average between 1990 and 2000. The increase inthis region was more than 35% while the total increase in the world's emission (excluding land use change) was almost 13%. In South America the increase came mainly from industry and transport, where emissions increased by more t...
17 May 2005 - by UNEP/GRID-Arendal
2
Green Continent: Latin America and the Caribbean Green Continent: Latin America and the Caribbean
Land cover distribution in classes, ratios
17 May 2005 - by Viktor Novikov, UNEP/GRID-Arendal
4
CO2 emissions in the world and in Latin America and the Caribbean CO2 emissions in the world and in Latin America and the Caribbean
A comparison between the amount of CO2 emissions of the world and latin America and the Caribbean. Since pre-industrial times, the atmospheric concentration of greenhouse gases has grown significantly. The present level of carbon dioxide concentration (around 375 parts per million) is the highest for 420,000 years, and probably the highest for the past 20 million years. CO2 is the greenhouse gas that contributes most to the enhanced greenhouse e...
17 May 2005 - by UNEP/GRID-Arendal
3
Top 10 CO2 emitting countries in 2000; Latin America and the Caribbean Top 10 CO2 emitting countries in 2000; Latin America and the Caribbean
Brazil is the world’s second largest emitter of carbon dioxide (CO2) from land use change. Only Indonesia emits more. In 2000 CO2 emissions from land use change in Brazil represented 18% of the world’s total emissions. The per capita emissions from land use change in Brazil are 6 times higher than the world average. Most of the land use change emissions in Brazil are caused by the massive logging of its rainforest. The per capita emissions of C...
17 May 2005 - by UNEP/GRID-Arendal
4
Tropical hydropower dams as greenhouse sources Tropical hydropower dams as greenhouse sources
Large tropical hydropower reservoirs in Latin America may have a potential adverse impact on the climatic system through releasing greenhouse gases into the atmosphere. Submerging large areas of land and tropical vegetation under water and fluctuations in water level promote physical-chemical processes that decompose the organic matter and generate methane and carbon dioxide emissions. In the initial years of operation, emission levels are especi...
17 May 2005 - by Viktor Novikov, UNEP/GRID-Arendal
3
Projected changes in maize crops, Venezuela Projected changes in maize crops, Venezuela
Agriculture is a key sector in the region’s economy and it employs an important proportion of the economically active population. Climate change could adversely affect Latin American agricultural regions, especially tropical Latin America, by reducing the amount of land available for cultivation due to increased risk of desertification, and by decreasing yields, especially on rain fed lands due to changes in climatic patterns. The dry land in the...
06 Nov 2005 - by Viktor Novikov, UNEP/GRID-Arendal
2
Precipitation changes: trend over land from 1900 to 1994 Precipitation changes: trend over land from 1900 to 1994
Precipitation has increased over land at high latitudes of the Northern Hemisphere, especially during the cold season. Decrease in precipitation occurred in steps after the 1960s over the subtropics and the tropics from Africa to Indonesia.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
4
CO2 emissions from land use change CO2 emissions from land use change
Emissions of carbon dioxide due to changes in land use mainly come from the cutting down of forests and instead using the land for agriculture or built-up areas, urbanisation, roads etc. When large areas of rain forests are cut down, the land often turns into less productive grasslands with considerably less capacity of storing CO2.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
4
Previous | 1 2 3 4 5 6 7 8 9 | Next