The planet's Moment of Truth?

https://www.globalresearch.ca/the-moment-of-truth-has-come-what-now-threat-to-life-on-planet-earth-ozone-dying-and-the-deadly-ultraviolet-cosmic-radiation/5637864

The bearer of the horrendous message is Dr. Marvin Herndon together with Raymond Hoisington and Mark Whiteside, who have their respective Research results just published in the “Journal of Geography, Environment and Earth Science International”, Vol. 14, Issue 2, – titled:

“Deadly Ultraviolet UV-C and UV-B Penetration to Earth´s Surface: Human and Environmental Health Implications” (1)

In their article, the authors explain that UV-B radiation is a “stress factor”, that has a negative influence on the survival and growth of organisms in marine and freshwater, for instance Plankton, both as vegetable as well as animal. Thus, the food base of the marine and generally water inhabitants is endangered. In addition, UV-B can affect the photosynthesis, growth and metabolism of the underwater world, it can disturb the coral reef communities and destroy them by coral bleaching as well as by leading to a genome instability of plants. However, UV radiation is also harmful on land, for example generally for trees because it alters their biological and chemical environment. Conifers can produce deficient pollen under UV-B radiation and be disturbed in their reproduction or even become sterile. The toxicity of UV-B is known. It also applies to all other living beings.
UV-C, again, has for example lethal effects on insects and microorganisms. It even leads to a programmed cell death in plants. In rats, it causes cell damage, in humans, depending on the duration of irradiation, at least skin damages. In the announcement of the publication, there is a summary:

It is widely believed that atmospheric ozone blocks the deadly portion of solar radiation, UV-C and most UV-B, from reaching Earth’s surface. A just published scientific paper challenges this assumption. Published this week in the Journal of Geography, Environment and Earth Science International, the paper by J. Marvin Herndon, PhD, of Trans dyne Corporation, Raymond D Hoisington of I Ray Spectra Metrics, and Mark Whiteside, MD, MPH, a Florida Department of Health physician, confirms evidence NASA published and then failed to follow-up on in 2007.“