> Blaknięcie i zielenienie się raf koralowych jest cykliczne. Większe blaknięcia

> raf zdarzają się raz na 5 lat. Warto przyjrzeć się obrazkowi nr 2 w publikacji.

Warto też wczytać się w cały artykuł. Na przykład:

„Major bleaching events have returned to the Caribbean every five years or less, and with growing intensity (Figure 2B). With no real sign of recovery after bleaching in Caribbean reefs [16], these repeated events are likely to have caused reef decline that will extend beyond our lifetimes.”

The rising temperature of the world’s oceans has become a major threat to coral reefs globally as the severity and frequency of mass coral bleaching and mortality events increase

„the repeated coral bleaching events since the 1980s have been strongly attributed to anthropogenic climate change

„Thermal stress during the 2005 event exceeded any observed from the Caribbean in the prior 20 years, and regionally-averaged temperatures were the warmest in over 150 years.”

„While many sources of stress have caused corals to bleach, “mass” coral bleaching (at scales of 100 km or more) has only occurred when anomalously warm ocean temperatures, typically coupled with high subsurface light levels, exceeded corals’ physiological tolerances.

„Unlike many past Caribbean bleaching years, strong tropical climate forcing was only a minor driver of Caribbean SSTs in 2005. In their analysis of temperature anomalies across the tropical North Atlantic in 2005, Trenberth and Shea [26] indicated that half of the warming (0.45°C of the 0.9°C anomaly vs. a 1901–1970 baseline) was attributable to monotonic climate change, while only 0.2°C was attributable to the weak 2004–05 El Niño, and even less to the Atlantic Multi-decadal Oscillation (<0.1°C).”

Swoją drogą, większość autorów artykułu to oceanografowie i biolodzy morscy, a nie „ekolodzy” (cokolwiek byś nie rozumiał pod tym pojęciem).