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Blue Carbon - The Role of Healthy Oceans in Binding Carbon
Blue Carbon - The Role of Healthy Oceans in Binding Carbon
Very large cuts in emissions of greenhouse gases are needed if we are to avoid the worst effects of global climate change. This report describes the vital contribution that ecosystems can and must make to these efforts.
Available online at: http://www.grida.no/publications/rr/blue-carbon/
Global Ocean Acidification
As carbon concentrations in the atmosphere increase, so do concentrations in the ocean, with resultant acidification as a natural chemical process.
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Larimichthys polyactis Catch in early 2000s and predicted Catch Shift
(a) Current (early 2000s) and (b) climate-shifted distributions of the small yellow croaker Larimichthys polyactis (Sciaenidae). The climate-shifted distribution was predicted by a dynamic bioclimate envelope model descr...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Seagrass
Distribution of the world's blue carbon sinks (seagrasses).
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Thermohaline Circulation
Thermohaline circulation is a 3-dimensional flow involving surface and deep ocean waters, which is driven by differences in water temperature and salinity. (Image source: NOAA/NCDC).
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Southern Ocean Carbon Sink Change
The Southern Oceans are recognised as an important carbon sink currently taking up approximately 15% of anthropogenic CO2. Models predict that as the atmospheric concentration of CO2 increases, so should the ocean’s abso...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Number of Disasters per Year
Trends in number of reported disasters. Much of the increase in the number of hazardous events reported is probably due to significant improvements in information access and also to population growth, but the number of f...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Blue Carbon Sink Burial Rates a)
The capacity of ocean's blue carbon sinks (tons of carbon per hectare per year).
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Oceans Carbon Fluxes
An important role played by the ocean is the storage and exchange of CO2 with the atmosphere, and its diffusion toward deeper layers. At high latitudes, dense waters sink, transferring carbon to the deep ocean. Warming o...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Blue Carbon Sinks
The carbon captured by living organisms in oceans is stored in the form of sediments from mangroves, salt marshes and seagrasses. Benefiting from the excellent conditions available to support plant growth, vegetated coas...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
World Greenhouse Gas Emissions by Sector
All transport accounts for approximately 13.5% of the total emissions, while deforestation accounts for approximately 18%. However, estimates of the loss of marine carbon-binding ecosystems have previously not been inclu...
06 Oct 2009 - by WRI/Tim Herzog
Green Carbon
45% of green carbon stored in natural terrestrial ecosystems and the remaining 55% is captured by living organisms in oceans and ocean's blue carbon sinks.
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Fish Catch
The worlds most productive fishing grounds are confined to major hotspots in around 7.5% of the ocean surface, where over half of the fish are caught.
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Current Valuation Estimates of Blue Carbon Sink
Although coastal ecosystems are already among the most valuable on the planet, the current estimates of the economic value for some of the oceans blue carbon sinks are surprisingly low. How should human perception of the...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Actual and Projected Energy Demand
Projected growth in energy demand in coming decades.
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Black Carbon Emissions
Combustion sources of black carbon. Black carbon is thought to be the second largest contributor to global warming, next to brown carbon (the gases). Thus, reducing black carbon emission represents one of the most effici...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Blue Carbon Sink Burial Rates b)
The capacity of ocean's blue carbon sinks (total annual blue carbon sink burial rates).
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Vulnerability of National Economies to Potential Climate-Induced Changes in Fisheries
Comparative vulnerability of national economies to climate impacts on fisheries. Vulnerability of national economies of potential climate change impacts on fisheries (which integrates exposure, sensitivity and adaptive c...
06 Oct 2009 - by Giulio Frigieri
Atmospheric Circulation Patterns
Carbon cycling in the world’s oceans. The flow of carbon dioxide across the air-sea interface is a function of CO2 solubility in sea water (Solubility Pump). The amount of CO2 dissolved in sea water is mainly influenced ...
06 Oct 2009 - by Giulio Frigieri
Sea Ice Anomaly in Northern Hemisphere
Arctic sea-ice reductions have significant impacts on climate, wildlife and communities. The opening of open water across the Arctic ocean will have unknown consequences in terms of changes in water circulation and redis...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Coral Reefs
Distribution of the world's coral reefs. Oceans blue carbon sinks, along with coral reefs and kelp communities, all fulfil very important functions in the coastal zone while providing opportunities for jobs and coastal p...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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