Sapiens question: Was the atmosphere & radiation the same for neanderthal man as us?

There are two initial questions that come to mind as I listen to the audiobook Sapiens: A Brief History of Humankind by Yuval Noah Harari:

  1. Was the constitution of the atmosphere different between what Neanderthal man breathed and Homosapiens man breathed?
  2. What about the quantity or variations of radiation on the planet during the time of Neanderthal man?

I ask these two questions because I seem to recall hearing from some documentary that I watched it sometime in the past that the constitution of the air that the dinosaurs breathed was very different from the air that we breathe today. (Maybe it was from one of the commentaries in one of the Jurassic Park videos.) 

That question inspires the question about radiation, because if radiation influences our skin color, then my question is does radiation and also influence the evolution of DNA?

 

(The image provided below illustrates where I am in the book.)

Memory Palace: Sutro Baths

Greetings All. I am a student of Jonathan Levi and Anthony Metevier (links provided below). Jonathan and Anthony teach how to improve your memory.

One of the steps involved in training your memory is to create something commonly called a “memory palace”. A memory palace is a place where you can store information you need to remember.

There are many methods to create a memory palace. I am choosing to do so using tourist locations in San Francisco.

The video of the Sutro Baths in San Francisco provided above is my first attempt at doing so.
LINKS:

Sutro Baths on Wikipedia:
https://en.wikipedia.org/wiki/Sutro_Baths

Photographs of Sutro Baths in video on Flickr:
https://flic.kr/s/aHskTmi7cm

How to Learn and Memorize the Vocabulary of Any Language using the Magnetic Memory Method by Anthony Metevier:
https://www.udemy.com/language-learning-online-magnetic-memory

SuperLearner v2.0 by Jonathan Levi:
https://www.udemy.com/become-a-superlearner-2-speed-reading-memory-accelerated-learning

SuperLearner Academy Master Class:
http://www.becomeasuperlearner.com

Video made with Adobe Premiere Clip. Make your own at http://premiereclip.adobe.com