Young climate activists and their attorneys who won a landmark global warming trial against the state of Montana are trying to convince a federal judge to block President Donald Trump’s executive orders promoting fossil fuels. During a two-day hearing starting Tuesday in Missoula, Montana, the activists and their experts plan to describe Trump’s actions to boost drilling and mining and discourage renewable energy as a growing danger to children and the planet. A victory for the activists would have much broader implications than their 2023 win, where a state court faulted officials for permitting oil, gas and coal projects without regard for global warming.