大象传媒

It's likely to be one of the more interesting of President Trump's bilateral meetings with world leaders. Mr Trudeau is a standard bearer for the liberal take on the modern world - welcoming to refugees, sensitive to minority rights, concerned about climate change. Right now, he is in discussions with President Trump, as the two men try to find common ground. For Canada, this is the country's most important and most risky international relationship. Meanwhile, a court in Austria has said no to a third runway at Vienna Airport, concerned about extra carbon emissions. We talk to our reporter in Austria, Bethany Bell. And Europe's steel industry is unhappy about prices for carbon emissions - so how can you create a fair and effective pricing system to reduce emissions?
(Description: US President Donald Trump, left, greets Justin Trudeau, Canada's prime minister. Photo: Andrew Harrer/Bloomberg via Getty Images)