Naked Science Forum

Life Sciences => The Environment => Topic started by: nudephil on 31/07/2020 16:25:38

Title: If UV is filtered by the ozone, why does climbing a mountain make a difference?
Post by: nudephil on 31/07/2020 16:25:38

Here's a question sent in by Nathaniel:

We often hear that when at higher altitudes (eg mountain regions), UV exposure is higher due to the thinner atmosphere. According to NASA's website, the UV rays from the sun are filtered by the ozone layer which is found in the stratosphere. If so, wherever we be within the troposphere the UV exposure should be the same - or not?

Can anyone help?

Title: Re: If UV is filtered by the ozone, why does climbing a mountain make a difference?
Post by: alancalverd on 31/07/2020 17:01:19

You surely don't believe what NASA says, after faking the moon landings, pretending the earth is a sphere, and covering up the alien takeover of the Democratic Party? 

As any flat earther will tell you (and you can't disbelieve the Chosen President of the Untied States, who is God's Expert on Everything), the sun is only 50 miles above the earth, so according to the inverse square law there is 10% more sunshine on top of any reasonable size mountain.

However if you are an atheist communist  follower of Satanic Science, you will know that the ozone layer strongly absorbs UVC, so that has very little tanning effect anyway at any survivable altitude, whereas UVA and UVB which do penetrate the epidermis and cause tanning and burning, are principally attenuated by atmospheric water, of which there is very little above the cloud layer.

But who cares about science these days?