Search Climate Insights Directory

The document outlines how forests influence climate stability through four non-carbon biophysical processes: albedo, evapotranspiration, surface roughness, and aerosols. It argues that ignoring these effects leads to an undervaluation of tropical forests, as tropical deforestation contributes 50 percent more to global warming than carbon-only metrics suggest. The authors propose six specific mechanisms for UNFCCC Parties to integrate these effects into official processes, including GHG inventories, Nationally Determined Contributions (NDCs), REDD+ reporting, National Adaptation Plans (NAPs), the Global Stocktake, and the IPCC's 7th Assessment Report cycle.

The policy brief highlights that forests influence the climate through four key non-carbon biophysical processes: albedo, evapotranspiration, surface roughness, and aerosols. It argues that focusing solely on carbon underestimates the cooling value of tropical forests and ignores local temperature spikes caused by deforestation. The authors propose six specific ways for UNFCCC Parties to integrate these effects into national greenhouse gas inventories, Nationally Determined Contributions (NDCs), REDD+ reporting, adaptation planning, the Global Stocktake, and the IPCC's Seventh Assessment Report (AR7).

The briefing explains how forests influence climate through non-carbon biophysical processes—albedo, evapotranspiration, surface roughness, and aerosols—and proposes six specific mechanisms for the UNFCCC to integrate these effects into national reporting, NDCs, REDD+, adaptation planning, the Global Stocktake, and IPCC assessments.

The document highlights that tropical deforestation contributes 50% more to global warming than carbon emissions alone when biophysical effects are included. These effects—albedo, evapotranspiration, surface roughness, and aerosols—regulate local temperatures and regional rainfall. Deforestation disrupts these processes, leading to decreased crop yields (e.g., a 12% drop in soy productivity in Brazil) and increased heat stress for workers. The authors urge companies and investors to move beyond reputational goals and address these material risks through jurisdictional collaboration, improved spatial analysis, and stricter financial disclosures.

The document highlights that tropical deforestation contributes 50% more to global warming than carbon emissions alone due to biophysical processes like albedo, evapotranspiration, surface roughness, and aerosols. These non-carbon effects cause local temperature spikes and regional rainfall disruptions, leading to direct productivity losses in commodities such as soy and impacting worker safety through heat stress. It calls on companies and financial institutions to move beyond reputational risk management and address these material operational risks through jurisdictional cooperation, improved spatial research, and stricter portfolio alignment.

The WRI Results Framework establishes a structured system to plan and evaluate programmatic progress across three primary human systems: food, land & water; energy; and cities. It sets specific global targets for 2030 and WRI intervention targets for 2027, focusing on outcomes such as reducing agricultural land demand by 100 Mha, increasing the share of zero-carbon electricity by 9% in target geographies, and improving urban climate resilience. The framework integrates Sustainable Development Goals (SDGs) and utilizes a tiered approach of global, intervention, and country-specific targets, supported by impact indicators for people, nature, and climate.

The report provides an economic analysis of securing indigenous land rights in the Amazon basin of Bolivia, Brazil, and Colombia. Using matching analysis, it finds that tenure-secure indigenous forestlands have significantly lower deforestation rates than similar non-secure lands. A benefit-cost analysis indicates that the investment is low-cost and high-benefit, with total ecosystem service benefits estimated between $679 and $1,530 billion over 20 years, while costs represent less than 1 percent of these benefits. The report argues that securing indigenous tenure is a more cost-effective carbon mitigation measure than fossil carbon capture and storage. It recommends that governments reform laws to strengthen community land rights and integrate tenure security into their Nationally Determined Contributions (NDCs).

The document highlights that tropical deforestation contributes 50% more to global warming than carbon emissions alone suggest due to biophysical processes like albedo, evapotranspiration, surface roughness, and aerosols. These non-carbon effects cause immediate local and regional climate disruptions, such as increased temperature extremes and erratic rainfall, which directly threaten crop yields and worker productivity. For example, deforestation in Brazil is linked to a 12% loss in soy productivity, and Amazonian deforestation is plausibly linked to a 2017 drought in Argentina costing the economy approximately $4.6 billion. The authors argue that while many companies have made deforestation-free commitments to manage reputational risks, they often overlook these material operational risks. To mitigate these, the report recommends that companies and investors increase coordination through coalitions, leverage nature-related financial disclosures, and engage in jurisdictional-scale conservation efforts that extend beyond their own direct supply chains.

The document explains that forests influence climate stability through four non-carbon biophysical processes: albedo, evapotranspiration, surface roughness, and aerosols. It highlights that tropical deforestation contributes 50% more to global warming than carbon accounting alone suggests and can increase local peak temperatures by over 7.6°C. The authors propose six specific actions for UNFCCC parties to integrate these effects into national GHG inventories, Nationally Determined Contributions (NDCs), REDD+ financing, adaptation planning, the Global Stocktake, and the IPCC's Seventh Assessment Report.

The study concludes that anthropogenic climate change made the record-breaking early season heat in northern Argentina and Paraguay approximately 60 times more likely. The analysis focused on the 7-day average of daily maximum temperatures, finding that the 2022 event was an exceptional occurrence that would have been unlikely without human-induced warming. The report also highlights the region's high vulnerability due to urban heat island effects, informal settlements lacking electricity, and the timing of the heatwave before populations had acclimated to summer temperatures.

The study finds that while the 2022 drought in Central South America was primarily driven by natural variability and La Niña conditions, human-induced climate change exacerbated the event by increasing temperatures, which reduced water availability through higher evapotranspiration. The drought caused severe agricultural losses in Argentina, including a projected 25-50% decrease in soy yields and a significant drop in wheat production, while limiting potable water access for over 75,000 people in Uruguay.

The document details the critical state of global freshwater resources, noting that less than 1% of Earth's water is accessible for human use. It highlights how climate change, inefficient agricultural irrigation—which consumes 70% of freshwater—and urban demand exacerbate water stress, affecting over 2 billion people. WWF's interventions are highlighted in the Rio Grande-Rio Bravo, the Indus River basin, the Pantanal, and various urban centers across Asia and North America, focusing on nature-based solutions, sustainable farming, and habitat restoration.

Wetlands are aquatic environments that provide critical ecosystem services, including carbon sequestration and water filtration, yet 87% of the world's wetlands have been lost over the last 300 years. They can store up to 50 times more carbon than rainforests and support the livelihoods of 300 to 400 million people. Conservation efforts include the Freshwater Challenge, which aims to commit 350 million hectares of degraded wetlands to restoration by 2030.

The Amazon is the world's largest rainforest and river system, containing one in 10 known species on Earth and storing between 90 billion and 140 billion metric tons of carbon. It is currently threatened by deforestation driven by cattle ranching, soy farming, and infrastructure, as well as climate change, which has caused rainfall to decline across 69% of the forest since 2000. WWF is implementing conservation strategies such as the Amazon Region Protected Areas program in Brazil to maintain a network of 120 protected areas.

The 'Food is Local' fellowship by WWF International provides funding for master's and PhD students from 32 eligible countries to conduct interdisciplinary research on transforming food systems to be more sustainable, equitable, and climate-resilient. Eligible applicants must be citizens of the listed countries, have two years of conservation experience, and plan to start their studies by January 2024. Research proposals are encouraged to cover themes such as agroecological practices, gender equity, and the role of food systems in achieving Nationally Determined Contributions (NDCs).

The Pantanal is the world's largest wetland, spanning Brazil, Bolivia, and Paraguay, and providing ecosystem services valued at $112 billion. It faces threats from land use changes, upstream pollution, and climate change, which is predicted to make the region hotter and drier. WWF is implementing a 'Trinational Initiative' to promote sustainable infrastructure, expand protected areas, and eradicate deforestation, which has already caused a loss of over 12% of the region's forest cover.

WWF US reviewed 151 NDCs from 179 countries to evaluate the integration of protected areas into national climate strategies. The analysis found that while 37% of countries explicitly mention protected areas, there is significant under-reporting of nature-based solutions, particularly regarding carbon sequestration and ecosystem-based adaptation. Developing nations generally demonstrated higher ambition than developed economies. The report provides five recommendations for Parties to enhance their NDCs, including setting measurable targets for area expansion and managing protected areas for future climate risks.

The WWF Emergency Amazon Fire Fund raised $1,750,113 to support fire response and recovery in the Amazon between 2019 and 2021. The fund provided firefighting equipment, monitoring technology, and humanitarian aid to partners in Brazil and Bolivia, benefiting over 117,000 people across 77 indigenous lands and conservation areas. Key initiatives included the distribution of over 6,000 pieces of firefighting equipment, the provision of 18 drones for forest monitoring, and the establishment of solar-powered laboratories to support sustainable cusi oil production by women in Bolivia's Chiquitano Dry Forest.