This document discusses the role of oceans as carbon sinks, specifically focusing on "blue carbon" sinks. Blue carbon refers to the carbon captured and stored by coastal ecosystems like mangroves, salt marshes, and seagrasses through biomass and sediments. These ecosystems act as highly efficient carbon sinks, capturing more carbon through photosynthesis than they release and burying carbon in sediments for millennia. Globally, blue carbon sinks are responsible for burying 120-329 teragrams of carbon per year, accounting for over half of carbon buried in marine sediments and ranking among the most intense carbon sinks. Yet coastal ecosystems have been neglected from global carbon cycle accounts.
Blue carbon research: An Indian PerspectiveCIFOR-ICRAF
Presented by Dr Gurmeet Singh, Futuristic Research Division, National Centre for Sustainable Coastal Management Ministry of Environment Forest & Climate change at Mangrove Research in Indian sub-continent: Recent Advances, Knowledge Gaps and Future Perspectives on 8 - 10 December 2021
Blue carbon science for sustainable coastal developmentCIFOR-ICRAF
Presented by Daniel Murdiyarso, Principal Scientist,on World Wetlands Day, 2 February 2017, at the Italian Cultural Institute of Jakarta (Istituto Italiano di Cultura Jakarta), Indonesia.
Blue Carbon Stocks in Mangrove Forests of Eastern IndiaCIFOR-ICRAF
Presented by Dr. Kakoli Banerjee, Assistant Professor & Founding Head, Department of Biodiversity & Conservation of Natural Resources, School of Biodiversity & Conservation of Natural Resources Central, University of Odisha at Mangrove Research in Indian sub-continent: Recent Advances, Knowledge Gaps and Future Perspectives on 8 - 10 December 2021
Blue carbon in the Pacific: Background and opportunitiesCIFOR-ICRAF
Presented by Dave Loubster, SPREP Vanuatu Country Manager and SPREP Representative on the IPBC Steering Group at the 3rd Asia-Pacific Rainforest Summit, on 23–25 April 2018 in Yogyakarta, Indonesia
primary productivity, photosynthesis, the primary producers in the aquatic environment. the factors affecting primary productivity in water, gross and net primary productivity, methods of measuring primary productivity based on measurements of oxygen evoution, carbohydrate estimation and chlorophyll method. the methods include radiocarbon(C14) method, C13 method , dark and light bottle method chlorophyll method, remote sensing and also incubation
Blue carbon research: An Indian PerspectiveCIFOR-ICRAF
Presented by Dr Gurmeet Singh, Futuristic Research Division, National Centre for Sustainable Coastal Management Ministry of Environment Forest & Climate change at Mangrove Research in Indian sub-continent: Recent Advances, Knowledge Gaps and Future Perspectives on 8 - 10 December 2021
Blue carbon science for sustainable coastal developmentCIFOR-ICRAF
Presented by Daniel Murdiyarso, Principal Scientist,on World Wetlands Day, 2 February 2017, at the Italian Cultural Institute of Jakarta (Istituto Italiano di Cultura Jakarta), Indonesia.
Blue Carbon Stocks in Mangrove Forests of Eastern IndiaCIFOR-ICRAF
Presented by Dr. Kakoli Banerjee, Assistant Professor & Founding Head, Department of Biodiversity & Conservation of Natural Resources, School of Biodiversity & Conservation of Natural Resources Central, University of Odisha at Mangrove Research in Indian sub-continent: Recent Advances, Knowledge Gaps and Future Perspectives on 8 - 10 December 2021
Blue carbon in the Pacific: Background and opportunitiesCIFOR-ICRAF
Presented by Dave Loubster, SPREP Vanuatu Country Manager and SPREP Representative on the IPBC Steering Group at the 3rd Asia-Pacific Rainforest Summit, on 23–25 April 2018 in Yogyakarta, Indonesia
primary productivity, photosynthesis, the primary producers in the aquatic environment. the factors affecting primary productivity in water, gross and net primary productivity, methods of measuring primary productivity based on measurements of oxygen evoution, carbohydrate estimation and chlorophyll method. the methods include radiocarbon(C14) method, C13 method , dark and light bottle method chlorophyll method, remote sensing and also incubation
Phil Colarusso, Boston Office of the EPA
Wetlands and coastal waters are exceptionally effective at storing carbon as well as performing many other ecosystem functions. Phil Colarusso tells us how cities and the global climate benefit from offshore seagrass beds, one of the richest of ecological resources and carbon sinks and part of the Boston area's native habitat. Eelgrass survival is entirely dependent on effective management of water resources for human use, especially intact healthy wetlands and efficient sewage disposal.
Presented at the Urban and Suburban Carbon Farming to Reverse Global Warming conference at Harvard University on May 3, 2015, organized by Biodiversity for a Livable Climate.
www.bio4climate.org
Presented by Dr. P. Ragavan, Scientist-B, MoEF & CC, New Delhi at Mangrove Research in Indian sub-continent: Recent Advances, Knowledge Gaps and Future Perspectives on 8 - 10 December 2021
Bangladesh is endowed by three principal river systems: the rivers Brahmaputra (Jamuna), Ganges (Padma), and Meghna. In the agro-based economy of Bangladesh,fisheries play an important role in nutrition, employment and foreign exchange earnings, contributing 4.37% to GDP, 2.01% to export earning, 60% to animal protein intake, in addition to providing 1.4 million people full time and 11 million part time employment. In 2012-2013 the total production of fish in Bangladesh was 3.41 million tons. About 82.73% of the fish production (2.82 million tons) comes from the inland fresh water resources and 17.27% from marine resources (0.58 million tons). Inland fisheries resources are broadly classified into inland open waters and inland closed waters which comprises the area of 3.91 million ha and 0.78 million ha contributing fish production over 1.85 million tons (54.54%) and 0.96 million tons (28.19%) respectively. Among the
4.69 million ha of inland open water resources, the major proportion consists of floodplains with an area of 2.8 million ha contributing 0.77 million tons of fish in 20012-13.
Seasonal floodplains are water bodies that retain water for 5-6 months during which they are suitable to grow fish and other aquatic animals. Recent studies have revealed that, if
25% of the 2.8 million ha can be brought under community management, calculating 50% to be accessible, then 6.7 million people would be benefited including 2.7 million
landless people. Out of 2.8 million ha of medium and deep-flooded areas, about 1.5 million ha are estimated to be suitable for community based fish culture. If 50% of accessible water of these areas is taken under aquaculture and management practices, then annual fish production will be increased 4 to 5 times over the existing production .
Ideally, the role of data collection is to support the monitoring of stated objectives and support for management processes. States should ensure that timely, complete, and reliable statistics on catch and fishing efforts are collected and maintained in accordance with applicable international standards and practices and in sufficient detail to allow sound statistical analysis. Such data should be updated regularly and verified through an appropriate system.
Chemical Oceanography is fundamentally interdisciplinary. The chemistry of the ocean is closely tied to ocean circulation, climate, the plants and animals that live in the ocean, and the exchange of material with the atmosphere, cryosphere, continents, and mantle
Comanagement is a non-financial arrangement between a physician performing surgery and a comanaging physician who provides care to the patient for some portion of the global follow-up period.
Presentation at the APEC Workshop on the Climate Change Impact on Oceans and Fisheries Resources, held on May 9th, 2015, in Boracay Island, The Philippines.
Phil Colarusso, Boston Office of the EPA
Wetlands and coastal waters are exceptionally effective at storing carbon as well as performing many other ecosystem functions. Phil Colarusso tells us how cities and the global climate benefit from offshore seagrass beds, one of the richest of ecological resources and carbon sinks and part of the Boston area's native habitat. Eelgrass survival is entirely dependent on effective management of water resources for human use, especially intact healthy wetlands and efficient sewage disposal.
Presented at the Urban and Suburban Carbon Farming to Reverse Global Warming conference at Harvard University on May 3, 2015, organized by Biodiversity for a Livable Climate.
www.bio4climate.org
Presented by Dr. P. Ragavan, Scientist-B, MoEF & CC, New Delhi at Mangrove Research in Indian sub-continent: Recent Advances, Knowledge Gaps and Future Perspectives on 8 - 10 December 2021
Bangladesh is endowed by three principal river systems: the rivers Brahmaputra (Jamuna), Ganges (Padma), and Meghna. In the agro-based economy of Bangladesh,fisheries play an important role in nutrition, employment and foreign exchange earnings, contributing 4.37% to GDP, 2.01% to export earning, 60% to animal protein intake, in addition to providing 1.4 million people full time and 11 million part time employment. In 2012-2013 the total production of fish in Bangladesh was 3.41 million tons. About 82.73% of the fish production (2.82 million tons) comes from the inland fresh water resources and 17.27% from marine resources (0.58 million tons). Inland fisheries resources are broadly classified into inland open waters and inland closed waters which comprises the area of 3.91 million ha and 0.78 million ha contributing fish production over 1.85 million tons (54.54%) and 0.96 million tons (28.19%) respectively. Among the
4.69 million ha of inland open water resources, the major proportion consists of floodplains with an area of 2.8 million ha contributing 0.77 million tons of fish in 20012-13.
Seasonal floodplains are water bodies that retain water for 5-6 months during which they are suitable to grow fish and other aquatic animals. Recent studies have revealed that, if
25% of the 2.8 million ha can be brought under community management, calculating 50% to be accessible, then 6.7 million people would be benefited including 2.7 million
landless people. Out of 2.8 million ha of medium and deep-flooded areas, about 1.5 million ha are estimated to be suitable for community based fish culture. If 50% of accessible water of these areas is taken under aquaculture and management practices, then annual fish production will be increased 4 to 5 times over the existing production .
Ideally, the role of data collection is to support the monitoring of stated objectives and support for management processes. States should ensure that timely, complete, and reliable statistics on catch and fishing efforts are collected and maintained in accordance with applicable international standards and practices and in sufficient detail to allow sound statistical analysis. Such data should be updated regularly and verified through an appropriate system.
Chemical Oceanography is fundamentally interdisciplinary. The chemistry of the ocean is closely tied to ocean circulation, climate, the plants and animals that live in the ocean, and the exchange of material with the atmosphere, cryosphere, continents, and mantle
Comanagement is a non-financial arrangement between a physician performing surgery and a comanaging physician who provides care to the patient for some portion of the global follow-up period.
Presentation at the APEC Workshop on the Climate Change Impact on Oceans and Fisheries Resources, held on May 9th, 2015, in Boracay Island, The Philippines.
CARPENTER: NISO’s Initiative on Patron Privacy in Information SystemsTACNISO
Todd Carpenter's presentation of the NISO Initiative on Patron Privacy in library, publisher and software-provider systems. This presentation was made during the Coalition for Networked Information (CNI) conference in December 2015.
Presentation on status of Oceanic Blue Carbon science and knowledge gaps. Presented at the Global Ocean Commission's High Seas Symposium, 12 November 2015.
Carbon is an essential element for all life forms on Earth. Whether these life forms
take in carbon to help manufacture food or release carbon as part of respiration, the
intake and output of carbon is a component of all plant and animal life.
The carbon cycle is vital to life on Earth. Nature tends to keep carbon levels balanced,
meaning that the amount of carbon naturally released from reservoirs is equal to the
amount that is naturally absorbed by reservoirs. Maintaining this carbon balance
allows the planet to remain hospitable for life. Scientists believe that humans have
upset this balance by burning fossil fuels, which has added more carbon to
the atmosphere than usual and led to climate change and global warming.
describe the oceans solubility pump and the oceans biological pump u.pdfarrowmobile
describe the oceans solubility pump and the oceans biological pump using the pools of carbon
(DIC, PIC, POC, DOC) and the processes. how are the two linked? where does the ocean \"take
up\" C and where is it released from the ocean?
Solution
The oceans play an important role in regulating the amount of fever to in atmosphere because 02
can move quickly into and out of the oceans. It is estimated that approximately 93% of Co2is
found in oceans.
In oceans the solubility pump is physicochemical process which transports dissolved inorganic
carbon to the interior.
The solubility pump is driven by to principal factors. First one 4more C02 can dissolve into cold
polar waters thane warm waters. As major ocean currents more from tropics to the poles they are
cold and take more carbon dioxide from the atmosphere secondly the higher latitude zones also
places where deep waters are formed as the water gets cold they become denser and sink into
oceans interior absoring the Co2 accumulated on the surface.
Bioloical pump: in this process carbon dioxide moves away from the surface ocean.
Microscopic Marine animals called zooplankyon eat the phytoplankton and provide the basis for
the food web for all animal life in the ocean.
Although most of the fever to taken up by phytoplankton is recycled near the surface 30% sinks
into the deeper waters before converted by Marine bacteria only 0.1 % reaches the sea floor as
sediment.
Carbon is cycled through the ocean biological processes of photosynthesis respiration and
decomposition of aquatic plants. As the oceanic plants don\'t have large Woody stems the
decomposition after quickly then on land Judo this very little carbon is stored in the ocean prove
biological processes the total amount of carbonn update and carbon loss from the ocean depends
on the balance of organic and inorganic processes.
Carbon dioxide is soluble in water it reacts with water to form several ionic and nonionic
compounds called dissolved inorganic carbon(DIC) for example aquous carbon dioxide ,carbonic
acid, bicarbonate and carbonate.
Carbon enters the ocean by dissolving in the water it also enters through rivers and other water
bodies it is converted by organisms into organic carbon by photosynthesis and the food chain
also helps in this process if circulates in the layout for longer periods before getting deposited as
sediments.
Oceanic absorption of Co2 is considered as very important form of carbon sequestration limiting
the rate of carbon dioxide in the atmosphere.
Dissolved organic carbon DOC in Marine systems is one of the cycled reservoir of organic
matter on earth and it makes up 20% of all organic carbon in general these compounds are
formed do the decomposition processes of organisms in the Marine system. It is defined as the
organic matter that is able to pass through a filter range in size between 0.7 and 0.22 um.
Particulate organic carbon POC is the carbon that is too large and is tilted out of your sample.
Dissolved and parti.
This is a small presentation on ocean acidification.It is a compilation of all materials(including present information) I collected related to it, any new information beside this or concerning it please comment.
This study aimed to understand the behavior of the carbonate system in the Cananéia-Iguape Estuarine-Lagoon Complex
(CIELC) to evaluate its potential as a source or sink for atmospheric CO2. This estuarine-lagoon complex is one of the most
extensive in Brazil, more than 100 km long and covers protected and sparsely inhabited regions of the state of São Paulo. This
system presents, in its southern portion, most preserved areas, and evident anthropogenic impact in the northern portion,
where an artificial canal was created in the second half of the 19th century, with the aim of shortening the navigation path link
the river to the estuarine system offering a passage to the sea, resulting in several modifications, both from a hydrodynamic
and biogeochemical mechanisms. Sampling of salinity (S), temperature (T), total alkalinity (TA), pH, dissolved oxygen (DO),
and nutrients (P and Si) were performed along the CIELC in the winter of 2012 and in the summer of 2013. S, TA, pH and
nutrients were used to support the understanding the behavior of the species in the carbonate system (CO2
, HCO3
-
, CO3
2-)
and related variables were used to calculating the partial pressure of CO2
(pCO2
). The data showed the difference in salinity
and carbonate members distinguished the northern and southern areas, the influence of the marine waters entrance by the
bars, and the predominance of the system as a source of CO2
, even in the most preserved area. However, the difference in this
behavior is most evident under anthropogenic pression offering risk of extreme changes in direction to the southern sector,
now observed until the intermediate point of the system. The recommendation is an urgency in monitoring this region to
minimizes futures environmental changes, as acidification and the increase as a source of CO2
Willie Nelson Net Worth: A Journey Through Music, Movies, and Business Venturesgreendigital
Willie Nelson is a name that resonates within the world of music and entertainment. Known for his unique voice, and masterful guitar skills. and an extraordinary career spanning several decades. Nelson has become a legend in the country music scene. But, his influence extends far beyond the realm of music. with ventures in acting, writing, activism, and business. This comprehensive article delves into Willie Nelson net worth. exploring the various facets of his career that have contributed to his large fortune.
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Introduction
Willie Nelson net worth is a testament to his enduring influence and success in many fields. Born on April 29, 1933, in Abbott, Texas. Nelson's journey from a humble beginning to becoming one of the most iconic figures in American music is nothing short of inspirational. His net worth, which estimated to be around $25 million as of 2024. reflects a career that is as diverse as it is prolific.
Early Life and Musical Beginnings
Humble Origins
Willie Hugh Nelson was born during the Great Depression. a time of significant economic hardship in the United States. Raised by his grandparents. Nelson found solace and inspiration in music from an early age. His grandmother taught him to play the guitar. setting the stage for what would become an illustrious career.
First Steps in Music
Nelson's initial foray into the music industry was fraught with challenges. He moved to Nashville, Tennessee, to pursue his dreams, but success did not come . Working as a songwriter, Nelson penned hits for other artists. which helped him gain a foothold in the competitive music scene. His songwriting skills contributed to his early earnings. laying the foundation for his net worth.
Rise to Stardom
Breakthrough Albums
The 1970s marked a turning point in Willie Nelson's career. His albums "Shotgun Willie" (1973), "Red Headed Stranger" (1975). and "Stardust" (1978) received critical acclaim and commercial success. These albums not only solidified his position in the country music genre. but also introduced his music to a broader audience. The success of these albums played a crucial role in boosting Willie Nelson net worth.
Iconic Songs
Willie Nelson net worth is also attributed to his extensive catalog of hit songs. Tracks like "Blue Eyes Crying in the Rain," "On the Road Again," and "Always on My Mind" have become timeless classics. These songs have not only earned Nelson large royalties but have also ensured his continued relevance in the music industry.
Acting and Film Career
Hollywood Ventures
In addition to his music career, Willie Nelson has also made a mark in Hollywood. His distinctive personality and on-screen presence have landed him roles in several films and television shows. Notable appearances include roles in "The Electric Horseman" (1979), "Honeysuckle Rose" (1980), and "Barbarosa" (1982). These acting gigs have added a significant amount to Willie Nelson net worth.
Television Appearances
Nelson's char
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
Natural farming @ Dr. Siddhartha S. Jena.pptxsidjena70
A brief about organic farming/ Natural farming/ Zero budget natural farming/ Subash Palekar Natural farming which keeps us and environment safe and healthy. Next gen Agricultural practices of chemical free farming.
UNDERSTANDING WHAT GREEN WASHING IS!.pdfJulietMogola
Many companies today use green washing to lure the public into thinking they are conserving the environment but in real sense they are doing more harm. There have been such several cases from very big companies here in Kenya and also globally. This ranges from various sectors from manufacturing and goes to consumer products. Educating people on greenwashing will enable people to make better choices based on their analysis and not on what they see on marketing sites.
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
Characterization and the Kinetics of drying at the drying oven and with micro...Open Access Research Paper
The objective of this work is to contribute to valorization de Nephelium lappaceum by the characterization of kinetics of drying of seeds of Nephelium lappaceum. The seeds were dehydrated until a constant mass respectively in a drying oven and a microwawe oven. The temperatures and the powers of drying are respectively: 50, 60 and 70°C and 140, 280 and 420 W. The results show that the curves of drying of seeds of Nephelium lappaceum do not present a phase of constant kinetics. The coefficients of diffusion vary between 2.09.10-8 to 2.98. 10-8m-2/s in the interval of 50°C at 70°C and between 4.83×10-07 at 9.04×10-07 m-8/s for the powers going of 140 W with 420 W the relation between Arrhenius and a value of energy of activation of 16.49 kJ. mol-1 expressed the effect of the temperature on effective diffusivity.
1. THE ROLE OF
OCEANS AS CARBON SINKS
Based on a survey by UNEP
SHIVANGI SINGH
M.Sc. ENVIRONMENTAL SCIENCE
VIVA COLLEGE,MUMBAI
2.
Blue carbon is the carbon captured by the world's
oceans and coastal ecosystems.
The carbon captured by living organisms in oceans is
stored in the form of biomass and sediments from
mangroves, salt marshes and seagrasses.
WHAT IS BLUE CARBON?
3.
• The remaining excess production of mangrove forests,
salt-marshes and seagrass meadows is buried in the
sediments, where it can remain stored over millenary
time scales.
4.
Blue carbon sinks are strongly autotrophic, which
means that these ecosystems fix CO2 as organic
matter photosyntheticaly in excess of the CO2
respired back by biota thus removing CO2 from the
atmosphere.
Some of this excess carbon is exported and subsidises
adjacent ecosystems, including open ocean and
beach ecosystems.
Blue Carbon Sink
5.
In addition to burying a fraction of their own
production, blue carbon sinks reduce flow, alter
turbulence and attenuate wave action, thereby
promoting sedimentation and reducing sediment
resuspension.
The canopies of seagrass meadows trap particles
entrained in the flow, which lose momentum upon
impacting on the leaves, thereby promoting the
sedimentation of suspended material to the seafloor.
Role of Blue Carbon
7.
• Isotopic analyses of the organic carbon accumulated in
sediments of vegetated coastal habitats have shown
that a significant fraction derives from plankton
8.
The capacity of vegetated coastal habitats to accumulate
materials in the seafloor is that they act as efficient
carbon sinks, globally responsible for the burial of 120–
329 Tg C yr–1, which accounts for at least half of the
lower estimate for global carbon burial in marine
sediments.
Blue carbon sinks therefore play a major role in the
oceanic carbon cycle .
9.
Carbon burial in the ocean represents slightly over 10%
of the oceanic carbon sink capacity.
This 2,000 Tg C year–1 is the carbon annually transferred
from the atmosphere to the oceans, where it is largely
stored as dissolved inorganic carbon.
The long-term residence of anthropogenic CO2 in the
oceans is uncertain, as this carbon does not penetrate
deep enough to remain in the ocean over extended time
scales.
10.
Half of the anthropogenic carbon stored in ocean waters
is contained within the top 400 metres, where it may
equilibrate back to the atmosphere within a few decades,
and the amount present in the deep ocean – where it
may remain over much longer time scales – is below the
detection limit.
Only a minute amount of the carbon taken up by the
oceans is preserved in the deep-sea sediments, where it
is effectively buried over long periods of time,
representing 6 Tg C yr–1, with a carbon burial per unit
area of seafloor 180 times lower than the rate for blue
carbon sink sediments.
11.
Blue carbon sinks, which cover less than 0.2% of the
seafloor, contribute about 50% (71% using maximum
estimates) of the total burial of organic carbon in ocean
sediments and therefore rank amongst the most intense
carbon sinks in the biosphere.
Yet coastal vegetated habitats have been neglected from
accounts of the global carbon cycle and global
inventories of natural carbon sinks.
Blue carbon sinks are built by plants and trees but the
coastal ocean also contains vast areas covered by algal
beds.
13.
Studies suggest that the oceans have taken up around
2,000–2,200 Tg C yr–1 over the past two decades.
The uptake increased slightly from around an estimated
1800 in the 1980s, to 2,200 Tg C yr–1 in the 1990s and the
first half decade of the twenty-first century.
Only a portion of this carbon is actually stored
permanently in the oceans, as much is recycled and
released back within a few decades.
Ocean carbon in the global cycle
17.
Nellemann, Christian et al. (2009): Blue Carbon. The
Role of Healthy Oceans in Binding Carbon. A Rapid
Response Assessment. Arendal, Norway:
UNEP/GRID-Arendal
Laffoley, Dan and Grimsditch, Gabriel (2009): The
Management of Natural Coastal Carbon Sinks.
Gland, Switzerland: IUCN
References