K-Dog
MVP
Nope.
-
Welcome to PurpleFlock! Sign up here so that you can chat with your fellow Ravens fans.
The Well-Mannered Politics Thread
- Thread starter usmccharles
- Start date
- Status
So, when Earth was formed, it was basically a giant volcano. Shifting plates, literal lava everywhere, extreme greenhouse gases and volcanic gases (lots of CO2, phosphorous, sulfur, etc. In the atmosphere that formed the first atmosphere). If you put any current life form on Earth, they'd instantly die.
So, the first lifeforms we have were RNA based and it took time DNA to develop. These early bacteria were suited to the harsh conditions and actually helped filter out the harmful gases like sulfur and phosphorous. We still have many of these bacteria called archaea that cannot live outside of like a volcano or outside of a sulfur vent on the ocean floor.
As we progressed further, we eventually get DNA based bacteria that can effectively filter out the harmful gases, but also filter out any oxygen and nitrogen into their natural diatomic state that is so necessary for modern life. The introduction of these gases actually helped form a new atmosphere and produced the necessary gas for eukaryotic cells to develop. The new atmosphere, much less harsh, and helped form current weather patterns.
Bacteria and viruses evolve pretty rapidly, but larger eukaryotic organisms take millions of years to evolve.
I mean, I suppose life could essentially erase and restart itself...
It seems like you have a general idea of evolution, but not how it works and that's what I meant. And there's no shame in not knowing. I wouldn't know if it weren't my major.
K-Dog
MVP
So it seems to me there is quite a bit of change taking place there.
Because of life, not because Earth would naturally change on its own.
Life didn't adapt to changes on Earth; Earth adapted to changes caused by life.
K-Dog
MVP
Macro refers to change above the species. Micro is the species and below.
K-Dog
MVP
Earth adapted to change caused by life is what I am saying.
Thank you.
K-Dog
MVP
That is what I thought.
But we do have to consider that if Earth changes too quickly caused by things like fuel emissions, life may not catch up.
right i think i get what you mean with climate change then
the earth will change true - but it wont be the same earth you think of - it will change dramatically as a result of climate change (relatively) suddenly which will make it harder for many living things to survive - and the reason that's a problem is because humans wont be well adapted to the changed conditions...
Humans will survive because we can create the necessary technology. Everything else, though?
I feel bad for the polar bears and penguins and of course other animals that live in cold weather climates.
yeah i remember watching planet earth and its becoming harder for polar bears to survive because they have less space they can hunt in
Even the icebergs in Alaska are melting faster than ever. Obviously not just Alaska, but I use that as an example because I’ve gone on vacation in Alaska twice. What an awesome place to visit.
You know I'm not saying who I voted for last year or stand with but Hillary Clinton needs to shut up about losing the election last year. Its obvious she cant get over it and Donald Trump needs to quit running his mouth on twitter about how she is the biggest loser of all time and try again in three years. I mean both parties need to move on and let it go. This country is so divided its not even funny.
No question about that
icebergs melting is actually interesting because they dont actually affect the sea level when they melt because when they float they still displace the same amount of water - we dont want for example the arctic to melt because it would affect the climate in multiple other ways but technically the arctic melting wouldnt affect sea levels because it's already displacing the same amount of water...
- Status