Step 1: Understand the effects of global warming.
Global warming leads to the melting of glaciers, rising sea levels, and more extreme weather patterns.
However, global warming does not directly affect UVB radiation levels; instead, it is primarily the depletion of the ozone layer that increases UVB radiation.
Step 2: Identify the incorrect effect.
An increase in UVB radiation is caused by ozone depletion, not global warming.