مرجان ها به عنوان آرشیو آب و هوا: آیا ال نینوس تشدید می شود؟

Corals as climate archive: Are El Ninos intensifying?

Records from the past few decades show that, during this period, El Nino events have been frequent and often extreme. But is this normal, or is it the result of climate change? Corals can give us a clear indication.