Six young people from Portugal are taking European governments to court over an alleged failure to act quickly enough on climate change. The plaintiffs say the lack of immediate action is a breach of their human rights.

As European nations look for alternatives to Russian energy, efforts to shift towards renewables are picking up pace. Spain is turning to more wind power, which is already its main source of electricity. In Germany, a new floating solar power station is set to go online next month. Plus, speculation abounds following the surprise decision by Elon Musk not to join Twitter's board. One analyst says the story has turned from "Cinderella" to "Game of Thrones".

Here is why you should pick up a copy of The Guardian on Tuesday. Find these stories and much more when you grab a copy of The Guardian on the newsstands on Tuesday.

Pope Francis calls for an "immediate" ceasefire in global conflict and urges European nations to show "solidarity" in the face of a coronavirus pandemic that has claimed more than 109,000 lives worldwide.

European nations are hoping to bolster their military capabilities after 13 new joint defense projects were agreed. What are some of these projects and which nations are collaborating?