About Nature-based Solutions and climate adaptation
Climate change is causing a wide array of impacts around the world, such as sea-level rise, increased climate variability, and more frequent or intense droughts, floods, and wildfires. These impacts have increasingly severe social and economic consequences, with adaptation needs particularly urgent in low and lower middle-income nations and Small Island Developing States, as they are experiencing the most severe impacts of climate change and have lower adaptive capacity.
Healthy ecosystems provide important ecosystem services that can contribute to climate change adaptation. For example, healthy mangrove ecosystems provide protection from the impacts of climate change, often for some of the world's most vulnerable people, by absorbing wave energy and storm surges, adapting to rising sea levels, and stabilizing shorelines from erosion. EbA focuses on benefits that humans derive from biodiversity and ecosystem services and how these benefits can be used for managing risk to climate change impacts.
EbA involves the conservation, sustainable management and restoration of ecosystems, such as forests, grasslands, wetlands, mangroves or coral reefs to reduce the harmful impacts of climate hazards including shifting patterns or levels of rainfall, changes in maximum and minimum temperatures, stronger storms, and increasingly variable climatic conditions. EbA measures can be implemented on their own or in combination with engineered approaches (such as the construction of water reservoirs or dykes), hybrid measures (such as artificial reefs) and approaches that strengthen the capacities of individuals and institutions to address climate risks (such as the introduction of early warning systems).
IUCN work on EbA
Since 2009, IUCN has promoted the use of EbA as a nature-based solution for addressing the impacts of climate change on people and their environment.
In its work on EbA, IUCN has achieved: