Fears back-to-back cyclones may have damaged Great Barrier Reef
Briefly

Freshwater can cause corals to bleach and turbid water can starve reefs and seagrass meadows of light and promote the growth of algae, making it harder for corals to grow and multiply.
We're quite concerned about the potential impacts from the run-off on the reefs in the northern areas, she said. Marine ecosystems do not like freshwater, she said, and some freshwater bleaching had already been observed this summer.
Read at www.theguardian.com
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