🚀 go-pugleaf

In the April 95 edition of Scientific American, the following is noted from 'The Puzzle of
Declining Amphibians'

The authors (Andrew Blaustein, Oregon State University, and David Wake, UC Berkeley) 
evaluated the reasons behind a the decline in frog populations in various US 
locations. They suspected that stratospheric ozone depletion was a reason for 
the observed declines:

"Scientists in several disciplines documented a decrease in the stratospheric ozone
 shield that blocks most UV radiation from reaching the ground. These 
observations lead Blaustein and his co-workers to wonder whether increased 
exposure to UV radiation could explain the reproductive problems they had 
seen. They thought it might why many of the amphibian species known to be in 
decline were mountian dwellers that lay their eggs in open, often shallow 
waters. Such eggs undergo prolonged exposure to UV radiation that passes 
through the ozone sheild."

After two years of testing in many locations, one of their conclusions was
 "Clearly, amphibian eggs in wild populations were dying from exposure to 
ultra-violet B radiation."

It may be difficult to be overly anxious about frogs, but these are early warning
 signs for problems that have yet, in the main, been taken seriously enough to 
propel policy makers and industrial leaders into serious action. When is 
enough evidence enough?