Nature-Based Solutions (NBS) represent an expanding set of actions that can restore ecosystem health, achieving improved adaptability to external stresses and simultaneously providing benefits to human well-being and ecological biodiversity.
NBS have the potential to reinstate beneficial ecological patterns and advance climate change mitigation and adaptation by working to: improve degraded ecosystems, enhance carbon sequestration, increase watershed resilience, replenish groundwater, improve soil health, attenuate coastal wave energy under rising seas, and promote ecological biodiversity.
The benefits of source water protection
Healthy watersheds represent vital natural infrastructure for cities and communities, collecting and filtering freshwater, providing benefits for biodiversity conservation, climate resilience, food security, and human well-being.
Linked report "Beyond the Source: The environmental, economic and community benefits of source water protection" presents global NBS examples including: Land protection, revegetation, forestation, riparian restoration, agricultural best practices, wetland restoration, fire risk management and road management.
Benefits accounting can improve application and help build the business case for “green” solutions. The linked report “Benefit Accounting of NBS for Watersheds,” a joint project of the Pacific Institute, CEO Water Mandate, The Nature Conservancy, Danone, LimnoTech and an expert advisory group, assesses which NBS activities can be favorably implemented in various habitats, with suggestions for measurement methodologies. The guide’s aim is to guide NGOs, corporations, cities and communities in accounting for and measuring the benefits of NBS to freshwater sources and watersheds, carbon sequestration, biodiversity indices, and socio-economic indicators.
This NBS landscape assessment, sponsored by the CEO Water Mandate, highlights the barriers of businesses implementation
of NBS at a large scale. Without standardized methodologies to identify, estimate and monitor NBS benefits, green investments are not easily demonstrated to meet a triple bottom-line aspiration.
Using case studies across a range of NBS projects, geographies, habitats and industries, the Landscape Assessment covers Benefit identification and Benefit accounting, while acknowledging technical, governance, financial challenges, and barriers which limit implementation at scale.