Nature-Based Solutions

The status of forest carbon markets in Latin America

Background:

Latin America (LATAM) hosts some of the world’s largest tropical forests, which provide significant carbon sequestration and a major share of global forest carbon credits. Despite these benefits, deforestation and forest degradation remain critical issues. Forest carbon markets, both compliance and voluntary, have emerged as key mechanisms to finance conservation, reduce emissions, and enhance climate resilience.

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The natural capital framework for sustainably efficient and equitable decision making

Background

The concept of ‘natural capital’ is increasingly accepted in government and private sector decision-making for its role in sustaining economic and social well-being. However, the field is fragmented, and many applications misuse its foundations in economics and ecology, which this perspective addresses by proposing an integrated framework.

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Valuing natural capital and ecosystem services toward the goals of efficiency, fairness, and sustainability

Background

Natural capital (NC) and ecosystem services (ES) are fundamental to sustaining human life, but valuing them requires a whole-system understanding of the interdependencies between humans and nature. Conventional economic valuation, based solely on individual willingness-to-pay, is too narrow for this complex task.

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Ecosystem services in decision making: time to deliver

Background

Over the past decade, valuing and protecting ecosystem services has been promoted as a strategy to mainstream conservation globally. While the vision of the Millennium Ecosystem Assessment is gaining traction, a significant scientific and policy-implementation gap remains. Natural capital is often undervalued or ignored in major decisions by governments, businesses, and the public, a problem highlighted by natural disasters and crises where the loss of protective services becomes starkly apparent.

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Diverse values of nature for sustainability

Background

Despite 25 years of progress in valuing ecosystem services, a global biodiversity crisis persists, underpinned by a "values crisis." Current policies and decisions often prioritize a narrow subset of market-based instrumental values, ignoring the diverse ways people relate to and benefit from nature. This paper, based on the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) Values Assessment, synthesizes over 50,000 sources to address this gap.

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Bridging conservation and policy: evaluating national targets to reduce mangrove loss under the Kunming–Montreal biodiversity framework

Background

This research examines the alignment between the Kunming–Montreal Global Biodiversity Framework (GBF) targets and national efforts to halt mangrove loss. Under the Convention on Biological Diversity, GBF’s Targets 1 and 3 aim to reduce habitat loss and expand protected areas to conserve 30% of critical ecosystems by 2030. Mangroves, vital for biodiversity, carbon storage, and coastal protection, continue to experience degradation due to both human and natural drivers. Despite partial success in global mangrove protection, national policies often fail to address underlying drivers of degradation or incorporate specific, measurable conservation actions.

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The enduring world forest carbon sink

Background

Forests are critical to mitigating climate change because they absorb atmospheric carbon dioxide (CO₂) and store it in biomass and soils.  In 2023, atmospheric CO₂ levels exceeded 420 ppm, intensifying the urgency to understand terrestrial carbon sinks. Forests historically lost 180 Pg of carbon through land-use change, yet they remain central to achieving global net-zero goals by 2050. While remote sensing and modeling offer insights, this study emphasizes long-term, ground-based forest inventory data as the most reliable source for assessing trends in carbon sinks across boreal, temperate, and tropical forest biomes.

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Warming induces unexpectedly high soil respiration in a wet tropical forest

Background

Tropical forests play a key role in regulating the global carbon cycle, exchanging more carbon dioxide with the atmosphere than any other terrestrial biome.  However, limited in situ experiments constrain understanding of their response to climate warming. Understanding these responses is crucial, as even small changes in soil respiration in tropical regions can substantially influence global carbon dynamics and climate feedbacks.

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Land availability and policy commitments limit global climate mitigation from forestation

Background

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The changing global carbon cycle: linking plant–soil carbon dynamics to global consequences

Background

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