Impacts of climate change on forests

Impacts of climate change on forests

by Marc Hanewinkel

Life & Natural Systems Climate & Ecology RNPPollution and threats to the environmentRNPGClimate change
🎙 Marc Hanewinkel 👥 38 📅 January 29, 2026 ⏱ 62 min 👁 5 📄 expert opinion 🧭 2026-08-16
Available in: English (current) Français

Keywords

climate changeforestsspecies distribution modelsland expectation valuerobust decisions

Summary

Marc Hanewinkel, professor at the University of Freiburg, presents a lecture on the impacts of climate change on forests from an ecological-economic perspective. He begins by discussing a large-scale European project that used species distribution models to project the future distribution of major tree species under climate scenarios. The models show a north-eastward shift of species, with economically important species like Norway spruce and Scots pine drastically declining, while Mediterranean oaks expand. He then presents an economic valuation, estimating losses of 100-300 billion euros in production value by 2100, and notes that actual damages from recent droughts (e.g., 13 billion euros in Germany) support these estimates. The second part focuses on a research training group on forest biodiversity conservation, where they used process-based models to assess trade-offs between ecosystem services and conservation. They found that deterministic conservation strategies become more costly and complex when uncertainties (climate, economic) are considered, leading to robust solutions that require more land set aside. The third part describes a project in Central America on tropical plantations, where they calibrated the 3PG model for native mixed-species plantations. They found a sharp decline in productivity when mean annual temperature exceeds 29°C, which is relevant under climate change. Finally, he briefly introduces an upcoming international research training group with Canadian partners.

213 words

Critical Evaluation

Value of the Information & Strength of the Argument

The lecture provides valuable insights into the economic implications of climate change on forests, combining ecological modeling with economic valuation. The argumentation is solid, based on peer-reviewed research and empirical data. The speaker clearly explains the methodology and acknowledges uncertainties. The use of concrete examples (e.g., bark beetle damage) strengthens the argument. However, some parts are presented as a summary, and the audience may need to refer to the original papers for full details.

Scientific Rigor, Source Quality, Title Accuracy

The speaker cites several of his own publications, including a Nature Climate Change paper (2013) and a Science Advances paper, which are high-quality sources. He also mentions a research training group and a project with green investment funds. The title accurately reflects the content. The lecture is well-structured and the speaker is transparent about model assumptions and limitations. No comments were provided for analysis.

153 words

Title / Content Match

The title accurately reflects the content, which covers various impacts of climate change on forests in Europe and Central America.

Quality & Reliability

8/10

The lecture is based on peer-reviewed research, including a Nature Climate Change paper and a Science Advances paper, and uses extensive empirical data (European forest plots, tropical plantation data). The speaker is a professor at the University of Freiburg and coordinates international projects. However, the presentation is a summary and some details are simplified.

Key Moments

Markers derived by PSI from the transcript: the creator did not define chapters.

Cited Sources

Concurring Sources

  • IPCC reports on climate change impacts on forests — General support for climate change impacts on ecosystems.

Contribution & Novelties

The lecture synthesizes several research projects, providing a comprehensive view of climate change impacts on forests from an economic perspective. It highlights the importance of combining species distribution models with economic valuation, and the need for robust decision-making under uncertainty. The Central American case study adds a tropical perspective, showing that even high-growth forests are vulnerable to temperature thresholds.

Pour aller plus loin :

  • Species distribution modeling — Overview of the method used to project species ranges.
  • Land expectation value — Economic concept used to value forest land.
  • 3-PG model — Process-based growth model used for plantations.

97 words

Radar Profile

The radar profile shows high scores in information quantity, quality, and reliability, with a slightly lower technical level. This indicates a well-substantiated lecture that is accessible to a broad audience while maintaining scientific rigor.

Reliability 8/10