Saúl Luciano Lliuya vs. RWE: Who Pays for Climate Change?
Saúl Luciano Lliuya is suing RWE for the climate change threat to Peru. A case that could change the way fossil fuel companies are held accountable.

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Saúl Luciano Lliuya, a Peruvian farmer, is taking on German energy giant RWE in a lawsuit that could change how companies are held accountable for climate change. This case, which enters its hearing phase next Monday in Germany, has the potential to set a historic precedent.
A fight from the Peruvian Andes
High in the mountains of Huaraz, Peru, Saúl Luciano Lliuya watches with concern as melting glaciers, driven by global warming, threaten his community. His lawsuit against RWE—one of Germany's largest energy companies—is seeking to demonstrate that the company's historical greenhouse gas emissions are partly responsible for this crisis. This case not only represents a personal battle, but also a potential turning point in the global fight for climate justice.
The origin of the conflict
Saúl Luciano Lliuya, 45, lives under the constant threat of Lake Palcacocha, which has grown dangerously due to glacial melting. According to experts, this phenomenon is linked to climate change, exacerbated by companies like RWE, known for its fossil fuel-based energy production. In his lawsuit, Lliuya argues that RWE's emissions directly contribute to the risk of catastrophic flooding in his town—a concern shared by many in his community, he told the Associated Press.
A legal precedent in progress
Lliuya's case already made history when it was admitted as admissible by German courts in 2017—a step that validates its legal basis. Now, in the evidentiary phase, the court will assess whether there is a significant risk of flooding and whether RWE's emissions can be scientifically linked to that danger, explained Noah Walker-Crawford, a consultant for the Germanwatch organization, in an interview with AP.
Global implications of the case
Experts like Murray Worthy of Zero Carbon Analytics consider this trial a “watershed.” If companies like RWE are found to be proportionally responsible for climate damage, this could pave the way for a wave of similar lawsuits around the world. “The costs of climate change could reach tens of trillions of dollars annually,” Worthy notes, which would transform the financial landscape of the fossil fuel industry.
RWE's defense
For its part, RWE denies any legal responsibility, arguing that climate change is a global problem with multiple culprits. In a statement to the AP, the company asserted that attributing specific climate effects to a single emitter lacks a legal basis due to the complexity of the phenomenon and the diversity of emissions sources, both natural and human-made.
Impact beyond the courts
Beyond its legal significance, the Saúl Luciano Lliuya case could influence financial markets. Research cited by Walker-Crawford shows that progress in climate litigation against corporations tends to reduce the stock market value of the companies involved, alerting investors to the economic risks associated with high emissions.
A voice that resonates from Peru
Saúl Luciano Lliuya began this fight ten years ago with little hope, but today he sees a ray of light after the visit of German judges to Huaraz in 2022. Regardless of the ruling, his case has already laid the groundwork for future legal action against major emitters.
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