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An Australian court has overturned government approval for Indian company Adani's giant coal mine in Queensland. Critics challenged the decision in the Federal Court of Australia because of environmental concerns, including the threat posed to vulnerable species and damage to the Great Barrier Reef.

Egypt officially unveils an expanded Suez Canal on Thursday. It is one of the country's biggest construction projects since the original canal was built nearly 150 years ago. It is hoped it will reduce delays, increase capacity and attract more traffic and revenue. We ask just how valuable the new lane will be to the troubled Egyptian economy.

The Brazilian economy is struggling with its worst downturn in two decades, so with only a year to go until the opening of the Rio Olympics just how do people feel about the huge cost of the Games?

And Happy Birthday is one of the best-known songs around and makes big money for the owner of its publishing rights, Warner Music. But now there 's an attempt in a US court to get it declared part of the public domain. We hear from one of the plaintiff's lawyers.
Picture: Great Barrier Reef; Picture Credit: Getty Images