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Commuting by subway? What you need to know about air quality
Four more major Indian cities will soon have their own metro lines, the country’s government has ann...
Cities rally around the Paris deal, a reminder that global problems can have local solutions
When President Donald Trump withdrew the United States from the Paris agreement, the landmark climat...
Can the world’s megacities survive the digital age?
Today, megacities have become synonymous with economic growth. In both developing and developed coun...
Why journalists should engage with their readers: a view from Slovakia
What happens when journalists join in the discussion in the often-frightening comments section below...
In space, this is the age of reusability
Big plans are being made in space. Investment banks want to mine asteroids for rare, valuable metals...
After Trump’s visit, Saudi Arabia hopes to reinforce its influence in the region, against Iran
US President Donald Trump’s visit to Saudi Arabia and his “Islam speech”, delivered at the Arab-Isla...