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Energy prices fall and stock markets rebound after the US president says "very good and productive" talks have been held.
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The Earth's climate is further out of balance than at any time in recorded history, the UN's weather agency says.
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Those who do not comply can be jailed for up to a year and fined up to HK$100,000 ($12,700; £9,600).
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Leo Radvinsky became a billionaire after investing in the site, known for its pornographic content.
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The videos sparked widespread anger, leading to the hashtag #StopRapingWomen to trend on social media.