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Kampf gegen Klimawandel als letzte Chance

Das Great Barrier Reef, größtes Korallenriff vor der Küste Australiens, lässt sich nach Meinung von Experten nur noch mit einem entschlossenen Kampf gegen den Klimawandel retten.

Die Korallenbleiche, warnt Terry Hughes, Forscher an der James-Cook-Universität, sei nicht mehr allein mit Maßnahmen zur Verbesserung der Wasserqualität und Fischverboten aufzuhalten. (Videoquelle: APTN)

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Transkription

Terry Hughes (Forscher an der James-Cook-Universität): „The elephant in the room for better management of the Great Barrier Reef is tackling climate change. Our study shows that local action is not enough. You cannot climate-proof the Great Barrier Reef. We actually have to deal with greenhouse gas emissions. (...) The study shows that there’s nowhere to hide from global warming. So reefs that are highly protected, where you can’t go fishing, for example, have exactly the same vulnerability to bleaching as reefs where fishing is allowed. We also found no effective water quality on the vulnerability of the reefs to extreme thermal conditions. So, there’s nothing we can do locally to stop bleaching from happening. That doesn’t mean that managing water quality and fisheries isn’t a very good idea because it can help the recovery afterwards, but unfortunately recovery takes ten years or more and now we have a back-to-back event. (...) The real worry is we’ve seen now four of these major bleaching events in just 19 years, so the time between them, the gap between periods of recurrent bleachings is getting shorter and shorter, too short for a proper recovery. So, we have a narrow window of opportunity to deal with climate change before it’s too late.“