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Challenges and perspectives Wetland Management Susanna Tol – Wetlands International HQ. Preventing and reducing peatland emissions is currently not addressed by the global climate treaty… Main call: Protect and restore peatlands under a post-2012 climate framework . Rouergai, China.
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Challenges and perspectives Wetland Management Susanna Tol – Wetlands International HQ
Preventing and reducing peatland emissions is currently not addressed by the global climate treaty… Main call: Protect and restore peatlands under a post-2012 climate framework Rouergai, China
Peatlands are the most space-effective carbon stocks of all terrestrial ecosystems: • Boreal zone: 7 x more carbon per ha; Tropics: 10x • 3% of the world’s land area, 500 Gt Carbon • Equivalent to all terrestrial biomass, and 2 x the carbon stock in the total forest biomass of the world
Sequestration and long-term storage of carbon require permanent waterlogging. When drained, peatlands become vigorous sources of carbon dioxide (and nitrous oxide)…
Peatlands are found in 175 countries. Worldwide: 4 million km2
from the tundra …to the tropics…to the mountains…to the sea… Borneo Yakutia, RF Kyrgystan Archangelsk, RF
0.3 % of the land surface is responsible for 6 % of the total global anthropogenic CO2 emissions…
Largest emitters from peat drainage(in Mtons/yr, excl. peat extraction and fires)
World picture • Global CO2 emissions from drainage: 1.3 Gton/a (excl. extracted peat and fires) • Annex 1 countries: 0.5 Gton CO2 • 15 countries higher peat than fossil fuel emissions • SE Asia: peat emissions = 70% of fossil fuel emissions • Sub-Sahara Africa (excl. South Africa) peat emissions = 25% of all fossil fuel emissions • Since 1990 peatland emissions have increased in 50 countries (including 40 developing countries)
Causes of emissions • Main hotspot SE Asia: deforestation, fire…and peatland drainage for palm oil and pulp • Drained and abandoned peatlands in C&E-Europe • Peatland drainage for agriculture in Uganda • Peatland mining,overgrazing and desertification in Mongolia • Drainage, overgrazing and erosion in China
Germany Less emissions can be achieved throughpeatland rewetting
UK • Rewetting pilot projects in many parts of the world
Peatland rewetting Emission reduction potential: • Gross 2 Gtons on 500,000 km2 • Nett: much less • Half of the CO2 reduction annihilated by CH4 emissions after rewetting • realistic several 100s Mton CO2-eq./yr • Preventing and reducing peatland emissions is currently not well addressed by the global climate treaty…
Reducing peat emissions in Annex I Call for LULUCF: • Mandatory accounting for wetland management • Working towards land-based accounting Most comprehensive and fair.
Reducing peat emissions in Annex I Bio-energy: • Introduced through incentives KP • Energy and land use are closely interlinked • Pressure biofuel and food crops on land not being accounted • And on land for which opportunity costs are low • Projected peatland drainage for biofuels, windmills, …… • MANDATORY ACCOUNTING CAN HELP PREVENTING THIS • And concentrate such land use on degraded land
Reducing peat emissions in non-Annex I Call for REDD+: REDD: reducing emissions from organic soils: • Protecting intact natural peatswamp forests • Restoring degraded peatswamp forests AND: • emissions from non-forested peat soils
Further reading… Downloadable from www.wetlands.org and www.imcg.net