Comment les Parties de la CCNUCC, peuvent-elles agir sur les effets climatiques non carbone des forêts

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).

• Forests impact climate stability through four primary non-carbon biophysical processes: albedo (solar energy reflection), evapotranspiration (cooling via moisture release), surface roughness (wind turbulence and heat movement), and aerosols (particles like pollen that affect cloud color and ozone concentrations).
• Tropical deforestation has a significantly higher impact on global warming than carbon emissions alone, contributing 50% more to planetary warming when biophysical effects are included.
• Deforestation causes severe local temperature increases that far exceed global average warming; while global greenhouse warming may be 1°C, local communities losing forest cooling can experience temperatures 7.6°C higher during peak hours.
• Forest loss can disrupt regional precipitation patterns across national borders; for instance, deforestation in the Brazilian Amazon affects rainfall in Argentina, Bolivia, Paraguay, and Uruguay.
• The authors propose that UNFCCC Parties expand annual greenhouse gas (GHG) inventories and Nationally Determined Contributions (NDCs) to include biophysical cooling or warming effects based on latitude.
• Biophysical benefits should be integrated into REDD+ reporting and adaptation financing, including funds like the Green Climate Fund and the Adaptation Fund, to increase resilience against heat stress and drought.
• The document recommends utilizing the first Global Stocktake (BM) and the IPCC's Seventh Assessment Report (AR7) to establish methodologies for estimating the real temperature effects of forest cover changes.

APA

Culbertson, M., Seymour, F., & Wolosin, M. (n.d.). Comment les Parties de la CCNUCC, peuvent-elles agir sur les effets climatiques non carbone des forêts. World Resources Institute. https://files.wri.org/d8/s3fs-public/2023-10/how-unfccc-parties-can-act-forests-non-carbon-climate-effects-french.pdf

Chicago

Culbertson, Michael, Frances Seymour, and Michael Wolosin. Comment les Parties de la CCNUCC, peuvent-elles agir sur les effets climatiques non carbone des forêts. World Resources Institute, n.d. https://files.wri.org/d8/s3fs-public/2023-10/how-unfccc-parties-can-act-forests-non-carbon-climate-effects-french.pdf.

Wikipedia

{{cite report |last1=Culbertson |first1=Michael |last2=Seymour |first2=Frances |last3=Wolosin |first3=Michael |title=Comment les Parties de la CCNUCC, peuvent-elles agir sur les effets climatiques non carbone des forêts |publisher=World Resources Institute |url=https://files.wri.org/d8/s3fs-public/2023-10/how-unfccc-parties-can-act-forests-non-carbon-climate-effects-french.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{culbertsonndcomment, author = {Culbertson, Michael and Seymour, Frances and Wolosin, Michael}, title = {{Comment les Parties de la CCNUCC, peuvent-elles agir sur les effets climatiques non carbone des forêts}}, institution = {World Resources Institute}, url = {https://files.wri.org/d8/s3fs-public/2023-10/how-unfccc-parties-can-act-forests-non-carbon-climate-effects-french.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }