In July 2013, Geoengineeringwatch.org made the claim that UVB levels were at incredibly high levels, or around 9 mw/cm2 (milliwatts per square centimeter). That was a rather extreme claim, as the levels of
UVB in space are just 2.5 mw/cm2, and given that the atmosphere block a lot of that, it’s impossible to get MORE UVB actually reaching the ground. So obviously this must be wrong.
The questions of WHY is was wrong were not immediately apparent ... Read even more
