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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...
Protests in Colombia and South Africa reveal link between inequality and popular uprisings
Ongoing anti-government demonstrations in Brazil. The Women’s March on Washington. Protesters in Mor...
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...