Pollution is reducing the amount of natural ultraviolet (UV) sterilizing light outside of the tropics and increased rates of diseases are the expected outcome.

I think irradiating pilots with WiFi radio frequency (RF) radiation is really going to hit about five years from now as 'Delayed Radiation Complications' show up. I am expecting to see increased airplane accidents & crashes for various reasons starting in 2020 onward.

Some people call street lights 'Crime Lights', as they are associated with an increased level of criminal activity.

I routinely encountered people in high altitude observatories that openly stated that they had medically diagnosed heart issues. A high altitude observatory is a place where these people probably should not have been working due to the increased risk of heart attacks.

After six months of building muscle mass I can now confirm that muscle mass creates increased tolerance to biologically harmful radiation sources.

The California forest fires may lead to increased disease rates in their population.

Increased lightning is causing increased forest fires.