Claudia, 24, her brother Martim, 20, and her sister Mariana, 11, are among six young Portuguese people who have filed a lawsuit against 32 governments, including all EU member states, the UK, Norway, Russia, Switzerland and Turkey.

They accuse the countries of insufficient action over climate change and failing to reduce their greenhouse gas emissions enough to hit the Paris Agreement target of limiting global warming to 1.5C.

The case is the first of its kind to be filed at the European Court of Human Rights (ECHR) in Strasbourg. If it is successful, it could have legally-binding consequences for the governments involved. The first hearing in the case is being held on Wednesday.

Aged from 11 to 24, the six claimants argue that the forest fires that have occurred in Portugal each year since 2017 are a direct result of global warming.

They claim that their fundamental human rights - including the right to life, privacy, family life and to be free from discrimination - are being violated due to governments' reluctance to fight climate change.

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None of the young applicants is seeking financial compensation.