240-year-old nautical maps show coral loss is much worse than we knew. Half of the reefs recorded in the 1770s are missing from the satellite data.

240-year-old nautical maps show coral loss is much worse than we knew. Half of the reefs recorded in the 1770s are missing from the satellite data. (washingtonpost.com) Hi mad_bad_dangerous. Your submission from washingtonpost.com is behind a metered paywall.

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