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Center for International Forestry Research (CIFOR)
CIFOR  advances  human  wellbeing,  environmental  conservation  and  equity  by  conducting 
research to inform policies and practices that affect forests in developing countries. CIFOR is 
one of 15 centres within the Consultative Group on International Agricultural Research (CGIAR). 
www.cifor.cgiar.org
CIFOR’s guide to forests, 
climate change and REDD
Simply 
REDD
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When people debate climate change they often use scientific and 
technical language. The terms and acronyms we hear can cloud the 
issues if we don’t know what they mean. The Center for International 
Forestry Research (CIFOR) has prepared this simple guide to help 
journalists, policy makers, NGOs and interested global citizens better 
understand the importance of forests in combating climate change. It 
also highlights issues that CIFOR’s research has identified as crucial 
if the global climate agenda is to progress in a way that is effective, 
efficient and equitable.
Why must we protect forests if we want to curtail climate 
change?
Scientists estimate that deforestation and forest degradation account for around 
20 percent of the annual greenhouse gas emissions that fuel climate change. This 
is more than the emissions from the entire global transport sector. 
How can emissions from forests add up to more than all the 
emissions from cars, trucks, airplanes, and ships combined? 
When forests are damaged or cleared the burned or decaying wood releases the 
carbon stored in trees as carbon dioxide, increasing levels of this heat-trapping, 
greenhouse gas in the atmosphere. In addition, some forests protect large 
quantities of carbon stored below ground. For example, when forests in peatland 
are burned or drained, the carbon emissions are not limited to the above-ground 
vegetation; the organic matter below ground also begins to release carbon. 
Peatland forests have more carbon below the ground than above it. This carbon 
leaks out of the soil and into the atmosphere after the forest is cut.
When the trees have gone, the Earth loses a valuable resource that was 
continuously absorbing carbon dioxide already in the atmosphere. Recent 
studies have suggested that just under five billion of the 32 billion tonnes of 
carbon dioxide emitted annually through human activity are absorbed by forests. 
So losing a stand of trees is a double loss: We lose an ecosystem that absorbs 
greenhouse gases and we lose the carbon storage the trees provide.
So what should happen? Fence off all forests?
No. Forests are integral to the lives of the people who live in and around them 
and to society as a whole. According to the World Bank, over one billion 
people rely heavily on forests for their livelihoods. Hundreds of millions rely 
on medicines derived from plants harvested in forests. A large portion of the 
dietary protein consumed by rural communities comes from hunting and fishing 
on forested land. Forests are also important from a commercial perspective. In 
2003, the international trade in sawn wood, pulp, paper and boards was worth 
almost US $ 150 billion – over 2 percent of world trade.
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We can expect the conversion of forest to agricultural land to continue. But 
it must be done in a measured, strategic and sustainable way. Uncontrolled 
logging, clearing and burning of tropical forests should be stopped. We also 
need to stop the large-scale disruption of carbon-rich peatland, which releases 
disproportionately large amounts of greenhouse gases when cleared and drained.
Will anybody lose out if we try to control forest 
destruction?
Forests are usually cleared because there is money to be made from doing so. 
Converting forest to cash crops like oil palm, for instance, generates financial 
profits. So some short-term economic sacrifices will have to be made. But in 
the interests of equity poor, forest-dependent communities should not be the 
ones to suffer. Over the long term, everyone will benefit from more sustainable 
management of forests. If the greenhouse gases stored in forests are released, it 
will take generations to recapture them. So if large areas of forest continue to be 
lost, then we could find ourselves in a nightmare scenario.
What is the nightmare scenario?
The most common one is called a positive feedback loop; a self-perpetuating 
and accelerating cycle of cause and effect. If enough forests are destroyed, 
more carbon in the atmosphere both from forest destruction and other human 
activities could lead to the destruction of what’s left. More carbon emissions 
could lead to a warmer climate, which in turn could lead to more frequent 
droughts and forest fires, resulting in the release of even more carbon dioxide, 
which could lead to an even warmer climate. Forest exposed to repeated burning 
cannot recover, and can no longer store or absorb carbon. If we don’t act soon, 
we could undermine the potential role forests can play in mitigating emissions.
What should be done now?
There is a lot of positive work being done to address climate change through 
forest conservation. CIFOR’s research focuses on two aspects: adaptation and 
mitigation.
What is adaptation?
As the climate changes, forests and people will have to cope with gradual 
changes in average temperatures and precipitation rates. They will also face more 
frequent and intense weather events such as droughts or floods. Adaptation 
strategies can help people manage the effects of climate change and protect their 
livelihoods. CIFOR’s research promotes the inclusion of effective climate change 
adaptation strategies into forest management plans, and seeks to ensure that 
forests are sufficiently incorporated into strategies for the adaptation of society 
as a whole. 
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What are some examples of adaptation projects?
This is a new area of forest policy research, but to date examples include:
Ensuring enough forests are left in watersheds to slow soil erosion, 
anticipating the more intense rainfall that climate change may provoke
Preserving corridors of forest to enable wildlife and plant species to move 
into suitable climates
Charting buffer zones to stop the spread of forest fires
Planting tree species that tolerate higher temperatures and extreme weather 
events
Many sectors have a stake in adaptation policy. For example, ministries of 
transportation want to conserve healthy forests because thick haze from forest 
fires can shut down airports, and landslides can close roads. Providers of 
drinking water and hydropower companies are starting to consider upstream 
ecosystem management, including forest management. They want to reduce 
their vulnerability to shifting rainfall patterns and ensure the quality and 
quantity of their water supply. 
What is mitigation?
Adaptation and mitigation are complementary. Adaptation deals with the 
consequences of climate change while mitigation deals with the causes. We need 
both because scientists expect the effects of previous emissions to continue for 
some time even if we were to stop emitting greenhouse gases immediately.
How can the pace of climate change be slowed or 
mitigated?
Most mitigation efforts must come from reducing the use of fossil fuels in 
industrialised countries. Planting new trees to sequester carbon will also play a 
role. But to reduce the 20 percent of emissions related to forests, we need a new 
and more effective approach to conservation. One approach is called REDD, 
short for ‘reducing emissions from deforestation and forest degradation’. This 
idea differs from previous attempts to preserve forests because it directly links 
financial incentives for conservation with carbon stored in forests. 
How would REDD work?
Credits from reduced emissions, also called ‘avoided deforestation’, would be 
quantified. That positive quantity would then become a credit that could be sold 
in an international carbon market. Alternatively the credit could be handed to 
an international fund set up to provide financial compensation to participating 
countries that conserve their forest. REDD schemes allow forest conservation to 
compete on economic terms with the drivers of deforestation. Current economic 
drivers favour destructive logging practices and conversion of forest to other 
uses, such as pasture for livestock and arable land.
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For REDD schemes to take root what are the challenges?
Four key challenges have been identified: 
Measuring carbon
To place a value on the carbon-bearing potential of any forested area, we 
must accurately estimate how much carbon is being stored there. New 
technologies such as satellite imaging and computer modelling are making 
the measurement of carbon stocks both swift and accurate. A transparent 
system to measure and verify emission reductions now looks feasible.
Making payments
How will countries be rewarded and what form will that reward take? Who 
should be paid for protecting a specific forested area: national governments, 
local forest communities or logging companies? Donor countries are asking 
that payments should benefit poor people. National governments in countries 
likely to benefit from REDD, however, may wish to retain control over how 
payments are distributed. 
Accountability
If a REDD payment is made, but a forest still gets destroyed, what then? 
What can be done to ensure that carbon payments lead to sustained forest 
protection? 
Funding
Should developed countries create a fund to reward countries that reduce 
emissions from deforestation? Or, should these emissions reductions be 
linked to a market-based carbon trading system? How would such a market 
system work in practice?
Researchers and policy makers are beginning to realise that REDD schemes are 
unlikely to be ‘one size fits all’ solutions. The best way to design and implement 
a global REDD regime may be to allow countries to proceed in parallel with 
several different models. That way, a range of new schemes can evolve and each 
country can select what works best for its particular set of circumstances.
What about the voices and rights of Indigenous People who 
depend on the forest for their livelihoods?
Indigenous People and traditional communities are crucial to the process. 
More effort is needed to make sure their land and resource rights are 
recognised. Payments for carbon services could tempt government officials, 
private companies or local elites to take this new forest value away from local 
communities unless their property and tenure rights are secured. REDD 
architects must fully address the rights of forest communities before taking 
action to reduce forest-based carbon emissions. Trade-offs between reducing 
carbon emissions and reducing poverty may be required. The rights of local 
communities to exploit forests may have to be balanced against the need for 
concerted global action on climate change. 
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What has put REDD on the global agenda?
The United Nations Framework Convention on Climate Change (UNFCCC) 
13th Conference of the Parties (COP 13) in Bali in 2007 produced the Bali 
Action Plan; a process for negotiating a global climate strategy to succeed the 
Kyoto Protocol. This plan acknowledged the importance of forests in addressing 
climate change, and the enormous potential boon REDD represents. REDD 
initiatives can deliver significant climate change mitigation benefits along with 
co-benefits. These include protecting the environmental services that forests 
offer, improving the livelihoods of forest-dwelling communities and clarifying 
land tenure rights.
What stage are global negotiations on REDD at?
December 2009 will mark the end of a two-year consultation period. UNFCCC 
negotiators at the UN Climate Change Conference in Copenhagen will 
decide whether a REDD mechanism will be included in the post-2012 global 
climate agreement. Negotiators are likely to reach a general agreement that 
includes REDD and defines its scope, but schedules the detailed technical and 
methodological discussions for later negotiations. This is what happened with 
many elements of the Kyoto Protocol.
Some people are talking about REDD+. What is it?
A year after the Bali Action Plan was agreed, negotiators met again in Poznan, 
Poland. They reached a general consensus that REDD activities should be 
broadened. This approach is called REDD+ (REDD plus). Financial transfers 
under REDD+ will not just be used to curb deforestation and forest degradation, 
but also for conserving forest carbon stocks, sustainable forest management and 
enhancement of forest carbon stocks through tree planting and rehabilitation of 
degraded lands. Such a mechanism has the advantage of allowing many parties 
with different national circumstances to be included in a future framework. Is 
REDD+ feasible? That question is likely to be a key issue at negotiating rounds 
this year.
Who benefits from REDD+?
When REDD was first devised at COP 13 in 2007, the idea was most attractive 
to countries with high rates of deforestation. These countries have the greatest 
potential to significantly reduce their emissions from forest loss and to reap the 
greatest benefit when they do. Under the broader REDD+, countries that are 
already effectively protecting their forests can also benefit. Sustainable practices 
that help poor people, such as allowing communities access to forest goods, 
will also be recognised and rewarded. Replanting initiatives in deforested and 
degraded areas will also be taken into consideration. If REDD+ is on the table, 
more countries are likely to support or ratify a future agreement. However, 
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REDD+ requires a more complex framework to accommodate all of these 
categories, which could lead to higher transaction and implementation costs. 
Who is trying to solve REDD’s technical challenges, and how?
Two major global initiatives are underway to help developing countries 
implement future REDD mechanisms:
The 
1. 
United Nations REDD Programme Fund, UN-REDD, offers developing 
countries extensive support on deforestation and forest degradation issues. The 
programme offers capacity building, helps design national strategies and tests 
financing approaches and institutional arrangements to monitor and verify 
reductions in forest loss. UN-REDD is operating in nine countries: Bolivia, the 
Democratic Republic of the Congo, Indonesia, Panama, Papua New Guinea, 
Paraguay, Tanzania, Vietnam and Zambia. Demonstration projects have 
already commenced in a number of tropical forest areas and will examine the 
specifics of how REDD will work in practice. 
The World Bank is coordinating the second global initiative: 
2. 
the Forest 
Carbon Partnership Facility. The FCPF is similar to the UN programme, 
but is much larger in scale. It is operating in 29 countries: Argentina, Bolivia, 
Cambodia, Cameroon, Central African Republic, Chile, Colombia, Costa 
Rica, the Democratic Republic of the Congo, El Salvador, Equatorial Guinea, 
Ethiopia, Gabon, Ghana, Guatemala, Guyana, Honduras, Indonesia, Kenya, 
Lao People’s Democratic Republic, Liberia, Peru, the Republic of the Congo, 
Suriname, Tanzania, Thailand, Uganda, Vanuatu and Vietnam. 
These two initiatives coordinate missions when operating in the same country and 
hold their policy meetings back-to-back to allow participants to share ideas. Both 
initiatives also have several REDD demonstration activities underway in different 
countries to better understand how REDD can be implemented and to test the 
workability of different approaches. The progress and outcomes of these initiatives 
will help UNFCCC negotiators decide whether forest-related carbon dioxide 
emissions can be measured and whether proposed REDD mechanisms can work.
What will REDD cost?
According to the influential Stern Review on the Economics of Climate Change, the 
resources required to halve emissions from the forest sector up to the year 2030 
could be between US $17 billion and $33 billion per year. 
And where could this money come from?
Money could come either directly from international financing schemes, or from 
national government programmes. Some funds are already available for REDD 
demonstration projects through the voluntary carbon market, but most money 
channelled through the new funds or markets that could result from UNFCCC 
negotiations will not be available for several years.
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Glossary
Coming to terms with forests and climate
Climate change has spawned many new technical words and phrases. 
This list offers some helpful definitions. 
Adaptation:
 adjustments in natural or human systems that try to reduce the 
damage caused by climate change or to exploit the benefits. 
Afforestation:
 planting new forest on land that has not previously supported 
forest. 
Anthropogenic emissions:
 greenhouse gasses associated with human activity, 
such as deforestation or forest degradation from logging. 
Biofuels:
 fuel from renewable biological sources in either solid or liquid form. 
Biofuel crops associated with deforestation include palm oil, sugar cane and soya.
Cap and trade
: a two-part regulatory system in which the ‘cap’ is a government-
imposed limit on carbon emissions, and the ‘trade’ is a government-created 
market to buy and sell greenhouse gas credits. Companies that generate less than 
the allowed emissions can sell credits allowing others to emit more gases than the 
cap allows.
Carbon dioxide (CO
2
):
 a gas occurring naturally in the atmosphere. This gas 
is produced as a by-product of combustion when, for example, fossil fuels and 
biomass decay or burn. Carbon dioxide can also be emitted with changes in land 
use and during industrial processes.
Carbon markets
: financing bodies and mechanisms that can exchange the 
carbon credits generated from verified REDD activities. This could take the 
form of ‘voluntary markets’ (that are formed under agreed bilateral mechanisms 
between the trading parties) or ‘compliance market’ (that are legally regulated to 
meet emission reduction target under multilateral agreements).
Carbon trading
: transaction of verified or certified carbon credits generated 
from REDD in monetary terms. 
Carbon pool:
 A system which has the capacity to accumulate or release 
carbon. Examples of carbon pools are forest biomass, wood products, soils and 
atmosphere.
Carbon sequestration:
 the uptake and storage of carbon. Trees absorb carbon 
dioxide and release oxygen via photosynthesis. Trees also store carbon in their 
biomass.
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Carbon sink:
 any process or mechanism of absorbing carbon dioxide and 
retaining stocks of carbon in organic matter such as forests, oceans and soil. 
Carbon tax:
 a surcharge levied on consumers who emit carbon dioxide into the 
atmosphere.
Clean Development Mechanism (CDM):
 a scheme that helps industrialised 
countries meet their Kyoto Protocol emission targets in two ways besides 
reducing their own emissions: they can invest in reducing greenhouse gas 
emissions or in enhancing greenhouse gas sinks in developing countries.
Climate change:
 a change in the mean meteorological parameters that define 
climate or their variability. These parameters include temperature, rainfall and 
wind speed. 
Co-benefits:
 benefits from implementing REDD schemes in addition to 
reducing greenhouse gas emissions, such as poverty alleviation, biodiversity 
protection, and improvement in forest governance.
Conference of the Parties (COP):
 a decision-making body comprised of the 
parties that have ratified the UN Framework Convention on Climate Change.
Deforestation:
 the change of forested land to treeless land. 
Ecosystem:
 a community of organisms and their physical environment.
Ecosystem services:
 the benefits that an ecosystem provides to humans. For 
example, forests provide food, water, timber and fibre. They regulate climate, 
floods, disease and water quality. They also provide recreational, aesthetic and 
spiritual benefits.
Global warming:
 the increase in the Earth’s average temperatures year to year, 
which leads to changes in the climate.
Greenhouse effect:
 when gases such as carbon dioxide prevent the energy 
generated by the sun and radiated back from the earth in the form of heat to 
escape the Earth’s atmosphere.
Greenhouse gas sink:
 any process or mechanism which removes a greenhouse 
gas, an aerosol, or a precursor of a greenhouse gas from the atmosphere.
Intergovernmental Panel on Climate Change (IPCC):
 a joint UN 
Environment Programme–World Meteorological Organisation body responsible 
for providing the scientific and technical foundations for the UN Framework 
Convention on Climate Change.
Kyoto Protocol:
 an international agreement covering the period 2008-2012 
to slow climate change. Under the protocol industrialised countries agreed to 
reduce their collective greenhouse gas emissions by 5.2 percent from 1990 levels. 
Leakage:
 what occurs when a reduction of emissions in one area leads to an 
increase in emissions in another area. For example, a REDD project that protects 
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forest in one area, but leads to increased deforestation activities elsewhere. 
Leakage is also known as emission displacement.
Liability:
 the obligation of the REDD implementing project or country to ensure 
that the emission reductions that have been credited are permanent.
Mitigation:
 actions to reduce greenhouse gas emissions and to enhance carbon 
sinks to curb climate change.
Nationally appropriate mitigation action (NAMA):
 voluntary or mandatory 
action by a developing country to reduce its carbon emissions in line with its 
economic, environmental, social and political context.
Payments for environmental services (PES):
 schemes where beneficiaries of 
ecosystem services pay those who manage them to ensure the services continue. 
Peat:
 an accumulation of partially decayed vegetation matter. Peat forms in 
wetlands, including bogs, moors and peat swamp forests. 
Permanence:
 the duration and reversibility of reduced greenhouse gas 
emissions.
Planted forest:
 wooded land where trees have been established through planting 
or seeding. 
Primary forest:
 wooded land of native species largely untouched by human 
activities and where ecological processes are not disrupted.
REDD, or reducing emissions from deforestation and forest degradation:
 
a mechanism to reduce global greenhouse gas emissions by compensating 
countries for avoiding deforestation and degradation.
REDD+:
 broader REDD frameworks which include forest conservation, 
sustainable forest management or enhancement of forest carbon stocks to 
encourage greater participation in REDD and to reward countries that are already 
protecting their forests.
Reduced impact logging (RIL):
 planned and carefully controlled tree felling to 
minimise its impact on the surrounding environment. RIL can also reduce the 
carbon emissions that logging activities cause.
Reforestation:
 establishment of forest plantations in areas regarded as former 
forest lands.
Stern Review:
 Sir Nicholas Stern’s report in 2006 for the British government that 
examines the effect of climate change on the world economy. The Stern Review 
was not the first such report but it is perhaps the most influential. 
UN Framework Convention on Climate Change (UNFCCC):
 1992 treaty 
calling for the stabilisation of greenhouse gas concentrations in the atmosphere at 
a level that would not ‘dangerously’ affect the earth’s climate.
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Facts and Figures
Forest Cover
1
The total forest area of the world is about 4 billion hectares, which represents 
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nearly 30 percent of the Earth’s landmass. Approximately 56 percent of these 
forests are located in tropical and subtropical areas.
Forest cover is unevenly distributed. Only seven countries possess about 60 
 •
percent of it, 25 countries around 82 percent and 170 countries share the 
remaining 18 percent.
Planted forests account for approximately 3.8 percent of total forest area, or 
 •
140 million hectares. 
Forest Loss
2
Net global forest loss is estimated to be about 7.3 million hectares per year for 
 •
the period 2000–2005.
This represents a decrease from the period 1990–2000, for which the average 
 •
deforestation rate was 8.9 million hectares per year.
The highest amounts of deforestation occurred in South America, with 4.3 
 •
million hectares per year, followed by Africa with four million hectares per 
year. 
Forests and Livelihoods
More than one billion people rely heavily on forests for their livelihoods.
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3
More than two billion people, a third of the world’s population, use biomass 
 •
fuels, mainly firewood, to cook and to heat their homes.
Hundreds of millions of people rely on traditional medicines harvested from 
 •
forests.
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1  Food and Agriculture Organisation of the UN (FAO) 2007 State of the World’s Forests 2007, 
FAO, Rome.
2  FAO 2009 State of the World’s Forests 2009, FAO, Rome.
3  World Bank 2004 Sustaining Forests: A Development Strategy, Washington.
4  UN Department of Economic and Social Affairs 2009 Indicators of Sustainable Development 
www.un.org/esa/sustdev/natlinfo/indicators/methodology_sheets/poverty/without_electricity.pdf 
(1 June 2009).
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In some 60 developing countries, hunting and fishing on forested land 
 •
supplies more than a fifth of protein requirements.
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Forests and the Economy
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In 2003, the international trade in sawn wood, pulp, paper and boards 
 •
amounted to almost US $ 150 billion, or just over 2 percent of world trade. 
The developed world accounted for two-thirds of this production and 
consumption.
In many developing countries, forest-based enterprises provide at least one-
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third of all rural non-farm employment and generate income through the 
sale of wood products.
The value of the trade in non-timber forest products has been estimated at 
 •
US $ 11 billion. These products include pharmaceutical plants, mushrooms, 
nuts, syrups and cork.
Forests and Climate Change
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It is estimated that 1.7 billion tonnes of carbon are released annually due to 
 •
land use change. The major portion is from tropical deforestation. 
This represents about 20 percent of current global carbon emissions, which 
 •
is greater than the percentage emitted by the global transport sector with its 
intensive use of fossil fuels.
5  Mery, G., Alfaro, R., Kanninen, M. and Lobovikov, M. (eds.) 2005 Forests in the Global 
Balance – Changing Paradigms, IUFRO World Series 17. International Union of Forest Research 
Organisations (IUFRO), Helsinki.
6  World Bank 2004 Sustaining Forests: A Development Strategy, Washington D.C.
7  IPCC 2007 Summary for Policymakers In: Climate Change 2007: The Physical Sciences Basis, 
http://www.ipcc.ch/pdf/assessment-report/ar4/wg1/ar4-wg1-spm.pdf (1 June 2009).
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Talk to an Expert
Frances Seymour
CIFOR Director General
Specialises in governance issues and global architecture for 
managing forests and climate change
Markku Kanninen
CIFOR Scientist, member of the Intergovernmental 
Panel on Climate Change (IPCC)
Specialises in forest ecology, climate change mitigation  
and adaptation
Bruno Locatelli
CIFOR Scientist 
Specialises in forests and climate change adaptation
Daniel Murdiyarso
CIFOR Scientist, member of IPCC
Specialises in meteorology and climate change mitigation
Louis Verchot
CIFOR Scientist, member of IPCC
Specialises in carbon sequestration, emissions from agriculture 
and land use change
To talk with an expert, please contact:
James Clarke, CIFOR
+62 812 113 4889
j.clarke@cgiar.org
Tim Cronin, CIFOR
+62 811 133 2182
t.cronin@cgiar.org
Cover: Man measures the diameter of a Rhizophora apiculata in a mangrove in 
Kalimantan, Indonesia, in order to estimate the standing biomass and carbon content.
Photo: Daniel Murdiyarso
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Center for International Forestry Research (CIFOR)
CIFOR  advances  human  wellbeing,  environmental  conservation  and  equity  by  conducting 
research to inform policies and practices that affect forests in developing countries. CIFOR is 
one of 15 centres within the Consultative Group on International Agricultural Research (CGIAR). 
www.cifor.cgiar.org
CIFOR’s guide to forests, 
climate change and REDD
Simply 
REDD