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The FAO’s 2010 Global Forest Resource Assessment reports that forests cover a total of 4 billion hectares worldwide, equivalent to 31% of the total land area. Despite this figure, the world’s forests are disappearing. Between 1990 and 2000 there was a net loss of 8.3 million hectares per year, and the following decade, up to 2010, there was a net loss of 6.2 million hectares per year. Although the rate of loss has slowed, it remains very high, with the vast majority occurring in tropical regions.
Aside from the devastating effects tropical forest loss has on biodiversity and forest-dependent communities, a major consequence of deforestation and forest degradation is the release of heat-trapping carbon dioxide (CO2) into the atmosphere. Forests provide vast carbon sinks that when destroyed emit CO2 into the atmosphere, either by burning or degradation of organic matter. CO2 is one of the most potent greenhouse gases and the primary component of anthropogenic emissions. The conversion of forests to other land uses is responsible for around 10% of net global carbon emissions. Solving the problem of deforestation is a prerequisite for any effective response to climate change.
Degradation and deforestation of the world’s tropical forests are cumulatively responsible for about 10% of net global carbon emissions. Therefore, tackling the destruction of tropical forests is core to any concerted effort to combat climate change. Traditional approaches to halting tropical forest loss have typically been unsuccessful, as can be seen from the fact that deforestation and forest degradation continue unabated.
What is climate change?
Climate change is caused directly or indirectly by human activity that changes the composition of the global atmosphere and is in addition to natural climate variability observed over comparable time periods.
What causes climate change?
More greenhouse gases are accumulating in the atmosphere and sends it back to earth. These gases occur naturally and keep the earth at a temperature that allows life to thrive.
However, human activities such as the use of fossil fuels, are releasing more GHGs into the atmosphere. Carbon dioxide is the main anthropogenic (manmade) GHG emitted.
As GHGs accumulate in the atmosphere, more heat is trapped and the temperature increases. This contributes to global warming which brings about changes in our climate.
Forests mitigate climate change
The Intergovernmental Panel on Climate Change (IPCC) calculated that the forestry sector contributes to 17.4% of total anthropogenic greenhouse gas emissions in 2004. Most of the 17.4% comes from the removal of forests.
Forests as a carbon sink
Forests mitigate climate change by removing carbon dioxide from the atmosphere. Trees take in carbon dioxide to make their food and build new plant cells. This intake of carbon dioxide from the atmosphere makes forests a carbon sink. The removal of carbon dioxide from the atmosphere is also termed ‘carbon sequestration’. We can support the removal of carbon dioxide from the atmosphere by increasing forest areas, planting more trees and by providing a healthy environment for trees to regenerate.
Forests as a carbon reservoir
Because plants use carbon dioxide to build their plant cells, forests are like a big container of carbon. Carbon is stored in all parts of a tree in the plants growing on the forest floor, in organic matter on the ground and in the soil. This carbon storing capacity of forests make it a carbon reservoir or carbon pool.
Forests as a carbon source
The removal of forests will release vast amounts of carbon into the atmosphere as carbon dioxide. This makes forests a potentially large carbon source.
We can help reduce the release of carbon dioxide by
• Preventing the conversion of forestland to other land use types (like completely clearning a forest for agroculture)
• By reducing the degradation and destructive utilisation of our forests e.g. practice less destructive logging practices
• Conserving old and high value forests.
Global estimates of numbers of forest-dwelling and forest-dependent peoples vary widely, however the World Bank states that forest resources contribute directly to the livelihoods of 90% of the 1.2 billion people living in abject poverty. Of these, there are an estimated 500 million forest dependent people, 200 million of whom are indigenous peoples. Forests support the livelihoods of local communities who depend on forests not only for food, but for fuel, fodder for livestock, medicine and shelter. Whether in terms of communities most directly dependent on forest resources or people at the consumer end of international supply chains, forests are vital for the well-being of humanity and play a central role in poverty alleviation initiatives.
As it is often the poorest that are most susceptible to the adverse effects of climate change, reducing deforestation provides an opportunity to simultaneously tackle the problem at its source whilst helping to promote the resilience of those most vulnerable to climate change.
Forests provide essential ecosystem services beyond carbon storage and emissions offsetting – such as health (through disease regulation), livelihoods (providing jobs and local employment), water (watershed protection, water flow regulation, rainfall generation), food, nutrient cycling and climate security. Protecting tropical forests therefore not only has a double-cooling effect, by reducing carbon emissions and maintaining high levels of evaporation from the canopy, but also is vital for the continued provision of essential life-sustaining services.
These services are essential for the well-being of people and the planet, however they remain undervalued and therefore cannot compete with the more immediate gains delivered from converting forests into commodities. Ecosystem services operate from local to global scales and are not confined within national borders; all people are therefore reliant on them and it is in our collective interest to ensure their sustained provisioning into the future.
REDD+ provides a unique opportunity to achieve large scale emissions reductions at comparatively low abatement costs.
By economically valuing the role forest ecosystems play in carbon capture and storage, it allows intact forests to compete with historically more lucrative, alternate land uses resulting in their destruction.
Within its remit, REDD+ has the potential to simultaneously contribute to climate change mitigation and poverty alleviation, whilst also conserving biodiversity and sustain vital eco system services.
In its infancy, REDD was first and foremost focused on reducing emissions from deforestation and forest degradation. However, in 2007, the Bali Action Plan formulated at COP13 stated that a comprehensive approach to mitigating climate change should include policy approaches and positive incentives on issues relating to reducing emissions from deforestation and forest degradation in developing countries.
A year later this was further elaborated on as the role of conservation sustainable management fo forests and enhancement of forest carbon stocks was upgraded so as to receive the same emphasis as avoided emissions from deforestation and forest degradation.
Finally in COP16 as set out in the Cancun Agreements, REDD became REDD+ to reflect the new components.
REDD+ now includes
A – Reducing emissions from deforestation
B – Reducing emissions from forest degradation
C – Conservation of forest carbon stocks
D – Sustainable management of forests
E – Enhancement of forest carbon stocks
REDD+ is a voluntary approach for developing countries and
includes five activities:
• Reduce emissions from deforestation
• Reduce emissions from forest degradation
• Conserve forest carbon stocks
• Sustainably manage forests
• Enhance forest carbon stocks
Four components make up REDD+, they are:
• A national strategy or action plan
• A national forest reference level as the basis for accounting the
results of REDD+ activities
• A national forest monitoring system
• A system for reporting how all of the REDD+ social and environmental
safeguards are being addressed and respected throughout the
implementation of the activities Countries implementing REDD+ may
pass through three phases:
• The development of national strategies or action plans, policies
and measures, and capacity-building
• The implementation of national policies and measures, as well
as national strategies or action plans, that could involve capacity
building, technology development and transfer, and results- based
• Results-based actions that should be fully measured, reported
Financial support for REDD+ may come from a variety of sources,
such as the public and private sectors and bilateral and multilateral
agreements. This funding may include payments for emissions
reductions achieved through the implementation of REDD+ activities.
These are called results-based payments.