Launched by world leaders

In September 2011, at a high-level event co-hosted by the German Ministry of the Environment and IUCN, the Bonn Challenge target was launched by leaders from around the world. Leaders at Bonn vowed to promote a landscape approach to restoration rather than a narrower approach (such as site level tree planting). They highlighted the importance of restoration across sectors, including in agriculture, energy, water, poverty alleviation and climate change.

The Bonn Challenge is intended to be an implementation platform for several existing international commitments, detailed below.

Global Commitments fulfilled through the Bonn Challenge

Following the United Nations Conference on Environment and Development (the Rio "Earth Summit") in 1992, more than 168 countries signed the Convention on Biological Diversity and comitted collective action to sustain life on earth. The CBD established a number of "biodiversity targets" for countries to pursue through ecosystem persevation and sustainable development activities. The Bonn Challenge aids implementation of Target 15, which states: By 2020, ecosystem resilience and the contribution of biodiversity to carbon stocks have been enhanced, through conservation and restoration, including restoration of at least 15 per cent of degraded ecosystems, thereby contributing to climate change mitigation and adaptation and to combating desertification.

Land Degradation Neutrality was born out of the United Nations Conference on Sustainable Development (Rio+20) where Member States “recognized the need for urgent action to reverse land degradation." The members of that event elected to "strive to achieve a land-degradation-neutral world in the context of sustainable development.” Since that landmark event the United Nations Convention to Combat Desertification has established an Intergovernmental Working Group to develop concrete options for preventing and reversing land degradation through good land management and restoration. The Bonn Challenge goal stands as one implementation vehicle for the Rio + 20 Land Degradation Neutrality aspiration.

Deforestation and forest degradation, through agricultural expansion, infrastructure development, destructive logging, etc., account for nearly 20% of global greenhouse gas emissions, more than the entire global transportation sector and second only to the energy sector. Reducing Emissions from Deforestation and Forest Degradation (REDD) is an effort to create a financial value for the carbon stored in forests, offering incentives for developing countries to reduce emissions from forested lands and invest in low-carbon paths to sustainable development. "REDD+" goes beyond deforestation and forest degradation, and includes the role of conservation, sustainable management of forests and enhancement of forest carbon stocks. Forest landscape restoration pursued under the Bonn Challenge can serve as one implementation stream for achieving REDD+ goals.

Many paths to one goal

The Bonn Challenge is an international goal championed by civic, business and government leaders from around the world. Progress toward the goal - the restoration...

How far we've come

148.38 million hectares pledged

2020 goal 2030 goal 0 150 350

Million hectares




  • Climate benefit:

    15.1 GtCO2 sequestered

  • Economic activity:

    46,595 million USD

There are numerous ways to get involved with the Bonn Challenge, whether you are a landowner, business leader, government actor, academic, or member of the public or civil society....