Tag: Sea

Spots of potential for wave energy harvest
Wave energy is captured directly from surface waves or from pressure fluctuations below the ocean surface. Wave power varies considerably in different parts of the world, making it more economically feasible to harness ...
16 Oct 2013 - by GRID-Arendal
Looking further offshore and in deeper waters
The high capital cost of offshore foundations bounds offshore wind energy to near shore locations. Most of the capacity has been installed in relatively shallow waters (under 20 m deep) no more than 20 km from the coast...
16 Oct 2013 - by GRID-Arendal
World cargo shipping lanes
The international shipping industry is responsible for the carriage of about 90 per cent of world trade by volume and is vital to the functioning of the global economy. Without shipping, intercontinental trade, the bulk ...
16 Oct 2013 - by GRID-Arendal
Seaborne oil trade and tanker spills
The ultimate goal of the shipping industry and its regulators is zero accidents and zero pollution. Although these goals have not yet been fully achieved, considerable progress has been made, especially in the context of...
16 Oct 2013 - by GRID-Arendal
Sea level rise in Anzali Lagoon, Iran
Fluctuating water levels will affect the population of the coastline and can cause substantial economic damage if appropriate measurements are not taken. A rise in sea level of 1.2 metres would flood Anzali, an Irani...
07 Mar 2012 - by Riccardo Pravettoni, GRID-Arendal
Mean sea surface temperature
Mean sea surface temperature in winter and summer
07 Mar 2012 - by Original cartography by Philippe Rekacewicz (le Monde Diplomatique) assisted by Laura Margueritte and Cecile Marin, later updated by Riccardo Pravettoni (GRID-Arendal), Novikov, Viktor (Zoi Environment Network)
Maps of average sea ice extent in the Arctic summer (September) and winter (March), and in the Antarctic summer (February) and winter (September)
Passive microwave sensors on satellites have monitored the extent of the sea ice cover since 19782. This technique is widely used to investigate fluctuations in ice extent over the seasons, variability between years, and...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Estimates of people flooded in coastal areas in the 2080s as a result of sea-level rise and for given socio-economic scenarios and protection responses
The lines represent IPCC Special Report on Emissions Scenarios (SRES) based on different world views. The differences in impacts between the SRES scenarios for the same amount of sea-level rise and protection response re...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Minimum arctic summer sea ice extent
Sea ice has decreased sharply in all seasons, with summer sea ice declining most dramatically — beyond the projections of IPCC 2007.
27 Oct 2009 - by Laura Margueritte
Major mineral fuel resources in Europe, Caucasus and Central Asia
Mineral fuels for electricity and heat generation take primarily two forms: fossil fuels in the form of oil, natural gas and coal, and uranimum ore for nuclear power. Oil and gas are distributed in different belts, prima...
20 Jul 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Hydropower potential (theoretical possitibility for electricity generation)
xHydropower, generating electricity through turbines, represents a clean and renewable energy source, but not without problems. Dams and reservoirs disrupt the natural flow, and may increase siltation and evaporation, in...
20 Jul 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Arctic sea ice minimum extent in September 1982, 2005 and 2007
The red line indicates the median minimum extent of the ice cover for the period 1979–2000. This figure compares the Arctic sea ice extent in September for the years 1982 (the record maximum since 1979), 2005 and 2007 (t...
18 Apr 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Increases in annual temperatures for a recent five-year period, relative to 1951-1980
Warming is widespread, generally greater over land than over oceans, and the largest gains in temperatures for the planet are over the North American Arctic, north central Siberia, and on the Antarctic Peninsula. These r...
18 Apr 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Ringed seal pupping lair, with the pup in the lair and the female approaching the haul-out hole from the water
Ringed seals are the 'classic' Arctic seal in many regards, being found as far north as the Pole because of their ability to keep breathing holes open in ice that can reach 2 metres in depth. This species is certainly on...
01 Nov 2007 - by Robert Barnes, UNEP/GRID-Arendal
Water management in Central Asia: state and impact
The withdrawal of water for irrigated agriculture has caused a social and environmental crisis in the Aral Sea Basin. Drying up of the sea has been accompanied by a wide range of other environmental, economic and social ...
16 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Transport SO2 emissions
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic shows transport SO2 emissions from 1990 to 1998 ...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
GDP: BSR and lowest versus highest
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). The graphic shows the economic wealth of countries in the Bal...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Consumption of ozone depleting substances
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic shows the consumption of the ozone depleting sub...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
baltic21_ba-trans-accid3 x
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000 )
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Number of tourist hotel overnight stays
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic shows the number of tourist hotel overnight stay...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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