Climate Change
Afforestation and Reforestation Have Varying Biodiversity Impacts Across and Within BiomesBackgroundAfforestation and reforestation (AR) are widely promoted as nature-based solutions (NbS) for carbon dioxide removal and climate mitigation. Global initiatives aim to expand forest cover significantly to meet climate targets. However, AR can produce unintended biodiversity impacts, particularly when implemented in ecosystems such as grasslands or savannas, where native species are not adapted to forest conditions. The ecological outcomes of AR vary across biomes and species, highlighting the need for spatially explicit, biodiversity-sensitive planning frameworks. Open access copy available |
Carbon sequestration in mangrove forestsBackgroundMangrove forests are highly valuable due to the ecological (e.g., sediment deposition, fish nurseries, protection from tropical storms) and economic (e.g., food, fuel) resources they provide. Carbon storage potential in mangroves is also a highly valuable characteristic, especially as a passive method of carbon dioxide capture and storage. In order to protect these important resources and services, it is necessary to create accurate analyses of the global potential and significance of carbon storage in mangroves. Open access copy available |
Valuing the Role of Mangroves in Storm Damage Reduction in Coastal Areas of OdishaBackgroundBuilding resilience has become a significant concern for coastal communities due to future sea level rise and more frequent tropical storms caused by climate change. Mangroves can provide coastal resilience by reducing lives lost and property damage from tropical storms. These benefits demonstrate how including these ecosystem services in sustainable land use planning could be an economically viable coastal resilience strategy. Open access copy available |
Mangroves protected villages and reduced death toll during Indian super cycloneBackgroundWhile protection against storm damage is discussed as an ecosystem service of mangroves, there is debate about whether there is sufficient evidence for these claims. Multiple studies on this topic use small sample sizes and have a lack of controls for confounding factors. However, quality research exists that effectively demonstrates mangroves’ ability to protect coastal communities from tropical storm surge. Thus, it is necessary that future studies focusing on mangroves’ protective capabilities from tropical storms follow higher research standards to effectively provide evidence for this ecosystem service. Open access copy available |
Mangroves protect coastal economic activity from hurricanesBackgroundWith more frequent and severe weather events anticipated due to climate change, coastal communities are interested in practical coastal defense interventions to protect their public and private assets and prevent disruptions to economic activity from tropical storms. Studies have documented mangrove forests’ ability to reduce wave action, wind velocity, and storm surge, making mangroves a cost-effective form of coastal protection. Yet, the relationship between how large a mangrove belt must be to provide significant protection and how mangroves mitigate tropical storm effects and economic damages is still unknown. Open access copy available |
Tipping Points of Amazonian Forests: Beyond Myths and Toward SolutionsBackgroundOpen access copy available |
Strong Climate Mitigation Potential of Rewetting Oil Palm Plantations on Tropical PeatlandsBackgroundTropical peatlands store vast quantities of carbon and therefore play a crucial role in global climate regulation. In Indonesia, extensive areas of peatland have been drained and converted to oil palm plantations and other agricultural uses. Drainage exposes peat to oxygen, accelerating decomposition and releasing large amounts of carbon dioxide into the atmosphere. Since degraded peatlands are estimated to contribute significantly to global greenhouse gas emissions, restoration strategies such as peatland rewetting have gained increasing attention as potential natural climate solutions. Open access copy available |
Storm Surge Reduction by MangrovesBackgroundFlooding and wave energy from storm surges can damage infrastructure and harm inhabitants of coastal communities. Climate change and sea level rise have the potential to increase or intensify storm surges, which necessitate investment in coastal defenses and disaster risk reduction. Mangroves can reduce the effects of storm surges through attenuating waves and wind, making mangroves an important form of nature-based protection for coastal communities. Open access copy available |
Reduction of Wind and Swell Waves by MangrovesBackgroundCoastal ecosystems can mitigate the damage from extreme weather events like tropical storms and hurricanes. With human populations increasing in coastal areas, policymakers and stakeholders are interested in coastal ecosystems, like mangrove forests, as a nature-based form of coastal defense and resilience. This report aims to examine the potential for mangroves to reduce wind and swell waves in order to inform decision makers about the potential for mangroves to decrease the risks faced by coastal communities. Open access copy available |
Life cycle impacts of forest management and wood utilization on carbon mitigation: knowns and unknownsBackgroundForests currently remove 2-3 GtC yr⁻¹ from the atmosphere, while global wood harvest exceeds 3-4 billion m³ yr⁻¹, creating complex interactions between forest carbon stocks, harvested wood products, and the substitution of wood for more emission-intensive materials. Lifecycle assessment (LCA) is widely used to evaluate these interactions, but differing system boundaries, baselines, and treatment of carbon pools can lead to very different conclusions about mitigation benefits. Clarifying where evidence is robust and where major uncertainties remain is essential for designing coherent forest-climate policy. Open access copy available |
