Nicholas Confessore reports via The New York Times: An auditing firm responsible for monitoring Facebook for federal regulators told them last year that the company had sufficient privacy protections in place, even after the social media giant lost control of a huge trove of user data that was improperly obtained by the political consulting firm Cambridge Analytica. The assertion, by PwC, came in a report submitted to the Federal Trade Commission in early 2017. The report, a redacted copy of which is available on the commission's website, is one of several periodic reviews of Facebook's compliance with a 2011 federal consent decree, which required Facebook to take wide-ranging steps to prevent the abuse of users' information and to inform them how it was being shared with other companies. The accounting firm, formerly known as PricewaterhouseCoopers, effectively gave Facebook a clean bill of health. "Facebook's privacy controls were operating with sufficient effectiveness to provide reasonable assurance to protect the privacy" of users, said the assessment, which stretched from February 2015 to February 2017. But during that period, Facebook was aware that a researcher based in Britain, Aleksandr Kogan, had provided Cambridge Analytica with private Facebook data from millions of users.

A new paper, published Wednesday in the journal Nature, reports that the Great Barrier Reef has lost more than half of its corals since 2016. The authors inspected every one of its reefs, surveying them on an almost species-by-species basis, and found the damage to be widespread across the entire ecosystem. "Two of its most recognizable creatures -- the amber-colored staghorn corals, and the flat, fanlike tabular corals -- suffered the worst casualties," reports The Atlantic. From the report: "On average, across the Great Barrier Reef, one in three corals died in nine months," said Terry Hughes, an author of the paper and the director of the ARC Center of Excellence for Coral Reef Studies, the Australian government's federal research program devoted to corals. "You could say [the ecosystem] has collapsed. You could say it has degraded. I wouldn't say that's wrong," Hughes said. "A more neutral way of putting it is that it has transformed into a completely new system that looks differently, and behaves differently, and functions differently, than how it was three years ago."

In the summer months of 2017, warm waters again struck the reef and triggered another bleaching event. This time, the heat hit the reef's middle third. Hughes and his team have not published a peer-reviewed paper on that event, but he shared early survey results with me. Combined, he said, the back-to-back bleaching events killed one in every two corals in the Great Barrier Reef. It is a fact almost beyond comprehension: In the summer of 2015, more than 2 billion corals lived in the Great Barrier Reef. Half of them are now dead. What caused the devastation? Hughes was clear: human-caused global warming. The accumulation of heat-trapping pollution in the atmosphere has raised the world's average temperature, making the oceans hotter and less hospitable to fragile tropical corals.