Marine pollution

The mounds of garbage on some coasts pose clearly visible problems. Other types of pollution are less visible – but every bit as serious.

Nearly half the Earth is covered by areas of the ocean that lie beyond national jurisdictions. Considering the importance of the oceans for our food supplies, preventing climate change, and preserving biodiversity, this is irresponsible. Change is needed, urgently.

Thanks to superficial cleaning measures plastic waste will probably not disturb the Olympic Sailing Competitions in the Guanabara Bay. A long-term restoration of the bay, however, stays indispensable as Emanuel Alencar illustrates in this article.