Charles Goddard: Marine pollution from plastics chemicals is a major cause of the decline in ocean health. John Fassman: This week marks 20 years since the American invasion of Iraq. He says he was surprised to see more than ever that there are signs that life is returning to Iraq. The Economist's Back to Blue podcast offers fresh perspective on events shaping your world.
America invaded Iraq 20 years ago this week. Today Baghdad is bustling, violence across the country is less frequent, but these gains have come at a horrific cost. India is getting a huge, essential infrastructure upgrade. And we say goodbye to one of our hosts.
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