From a UPI story.
The first, published June 5 by the journal Photochemistry and Photobiology, found that sunlight — specially ultraviolet solar radiation — kills SARS-CoV-2 in 30 minutes.
The second, published by JAMA Network Open on June 11, suggested that climates with warmer temperatures and higher humidity — like much of the United States during the summer — might slow the spread of the virus.
. . .The authors of both studies argue that people might be safer outdoors. This runs counter to many of the lockdown and social distancing measures implemented across much of the country in March, the researchers told UPI.
I posted What I Have Come to Believe on April 23. I said,
A fresh-air lifestyle is good for you. I am struck by the low death rate among homeless people and in India. Those populations ought to be at high risk, and the only story I can come up with is that they don’t spend as much time as we do indoors with HVAC.
I did not have much to go on. But I think what I said holds up. You are better off outside. The problem with hot weather in the U.S. is that it drives many people indoors for the air conditioning. UPDATE: According to Tyler Cowen, Nate Silver agrees on this point.
In fact, pretty much everything in that post holds up. I think that if you go back to March and April, I out-performed the professional health care experts in drawing inferences about the virus.