The Emperor Has No Coral

Not by Fire but by Ice


Discover What Killed the Dinosaurs . . . and Why it Could Soon Kill Us


The Emperor Has No Coral

8 Jul 08 - Results of research on coral reefs in the Florida Keys reef challenge the highly popular notion that present declines in reefs in Florida and elsewhere are related to human activities.

High-resolution sub-bottom profiling, reef drilling, and mapping of benthic habitats along the reef tract present a paradox in coral growth patterns: reefs that are dead or dying -- and therefore not building -- outnumber live and building reefs about 100 to 1. Yet growth rates of all common coral reef species should have kept pace with the well-documented rise in sea level over the past 6,000 years.

Why did so few reefs keep pace or build up with the rise in the present sea level?

Geological history may provide an answer: two 500-year periods of non-growth of coral reefs occurred in the region 4.5 thousand years ago and 3,000 years ago. These periods of non-growth indicate times of environmental crises that predated modern human presence in the Florida Keys. The present period of rapid coral demise has spanned only about 30 years.

These observations challenge the highly popular notion that the present declines in Florida, and elsewhere, are anthropogenic in origin.

See entire article:
Thanks to Winona Campbell for this info





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