A meeting with Vladimir Putin over Ukraine will not happen until Moscow engages with US proposals on the crisis, the US secretary of state says.
The US state of Colorado says it collected more than $2m in the first round of tax payments from newly legalized marijuana businesses.
Half the food the world produces is wasted - which could be a problem as the planet's population grows. Technology and analysis could improve the situation.
From Guyana to Mongolia, locals give their opinions on countries that might not be on the radar of most travellers - but should be.
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