A German court is due to decide on Wednesday whether a lawsuit brought by a Peruvian farmer against German energy giant RWE can continue, in a landmark case that is setting a precedent for future climate change litigation.

A German court ruled against a Peruvian farmer on Wednesday in a landmark climate lawsuit which activists say opens the door for major greenhouse gas emitters to be held financially liable in Germany.

RWE AG, one of Europe’s top carbon polluters, won dismissal of a case brought by a Peruvian farmer who tried to hold the German energy giant liable for its impact on climate change.