Either my Google-fu is weak...

Or they're really not doing research on this stuff.

To wit:

How much oxygen concentration in the atmosphere would be "too much"? What would the effects on mammals be of breathing an oxygen concentration half again what we have now (21% increased to about 30%)? What about birds and reptiles? Would we get bigger along with the bugs? Would our insides "rust" and thus our lifespans decrease? Apparently our white blood cells weaponize oxygen to combat infection (and how cool is that???), but all those free radicals bouncing around in a healthy body can't be good for you, right?

It's funny how you can change one thing about the environment...and all these other ramifications pop up. It's never easy. *grumbles*

Either my Google-fu is weak...

Or they're really not doing research on this stuff.

To wit:

How much oxygen concentration in the atmosphere would be "too much"? What would the effects on mammals be of breathing an oxygen concentration half again what we have now (21% increased to about 30%)? What about birds and reptiles? Would we get bigger along with the bugs? Would our insides "rust" and thus our lifespans decrease? Apparently our white blood cells weaponize oxygen to combat infection (and how cool is that???), but all those free radicals bouncing around in a healthy body can't be good for you, right?

It's funny how you can change one thing about the environment...and all these other ramifications pop up. It's never easy. *grumbles*