Global Warming & Climate Change Discussion

[xtreemchaos]

I'm afraid we as humans

i agree i think we have passed the point of no return and i also think it will be a while before most realise it. i dont like being neg but the writing has been on the wall for some time now and the folks whos in charge dont seam to be bothered, money rules in there minds,

 

[xkm1948]

i am not climate expert. To me, it is no longer about reverting the trend. We are long passed that. Most of the global population will be slowly cooked or destroyed by extreme weather. It is just a matter of fast or slow

 

[qubit]

i am not climate expert. To me, it is no longer about reverting the trend. We are long passed that. Most of the global population will be slowly cooked or destroyed by extreme weather. It is just a matter of fast or slow

The world certainly hasn’t got its act together so alas, you may be right.

 

[Space Lynx]

Just another tax scam

yeah because 125-130 faren in western Canada near Alaska is normal...

 

[lexluthermiester]

i agree i think we have passed the point of no return

And what particular "point of no return" are we talking about?

 

[rruff]

We are fubar, we just convince ourselves we are not, or that we can fix it.
I saw/read something ages ago that said the western states in America are gonna end up unpopulated deserts, unfortunately looks like it will come true.

Most of the water is used for irrigation. Farming in the desert will certainly take a hit if rain and snowfall decline, and maybe residential users will face higher prices and conservation. And maybe people will quit moving to Las Vegas and Phoenix if the temps get hot enough... I can't believe people tolerate it now. But that is nothing like a disaster.

The earth has been considerably warmer than now for most of its history, and it was better able to support life. A lot of land at higher latitudes will become viable for humans that isn't currently. Overall it's highly likely this will be a net gain for humans... certainly a huge bonus vs another ice age (which is due, BTW).

 

[rruff]

And what particular "point of no return" are we talking about?

If you were hoping for another ice age to happen soon, then that's probably not going to happen...

 

[lexluthermiester]

If you were hoping for another ice age to happen soon, then that's probably not going to happen...

Actually, that is unavoidable, global warming aside. The orbital inclination and eccentricity of Earth will trigger one in the next 150 or so years.

The earth has been considerably warmer than now for most of its history

This is incorrect. The Earth was much warmer during the age of the dinosaurs and time preceding that age than it has been during the last 50 million years.

and it was better able to support life.

That's true. The past had far fewer ice ages then in recent history.

 

[Space Lynx]

I just hope the scientists figure out what the hell is going on with the birds dying in mass.

If that gets any worse, combined with practically the entire western shore of Canada crustacean population being decimated by 125 faren heat... we may already be looking at failed food supply chains having ripple effects far greater than we can imagine. The complexity of the food chain supply is so complex I don't think any one human can fully understand it.

 

[xtreemchaos]

And what particular "point of no return"

the point of doing something and have a outcome that would improve our chances of having a long term good outcome or reversing what we have done to the planet so that we/everything are not a danger. .

 

[lexluthermiester]

the point of doing something and have a outcome that would improve our chances of having a long term good outcome or reversing what we have done to the planet so that we/everything are not a danger. .

In danger of what?

 

[Space Lynx]

the point of doing something and have a outcome that would improve our chances of having a long term good outcome or reversing what we have done to the planet so that we/everything are not a danger. .

Also, I think we are going to need to develop high mobility agriculture, so if mass crop failure happens in one area, military planes move on to move the seeds/salvage what they can on giant planes, transport it to somewhere more fertile OVERNIGHT, get it planted again, so on and so forth. Of course... that's really just kicking the can down the road tactics... so eh.

 

[rruff]

This is incorrect. The Earth was much warmer during the age of the dinosaurs and time preceding that age than it has been during the last 50 million years.

Aren't you agreeing with my statement? "The earth has been considerably warmer than now for most of its history"

The earth was slightly warmer at times >50M years ago; but only a few degrees higher than the temp 50M years ago of ~83F... ~23F hotter than now.

 

[Space Lynx]

Aren't you agreeing with my statement? "The earth has been considerably warmer than now for most of its history"

The earth was slightly warmer at times >50M years ago; but only a few degrees higher than the temp 50M years ago of ~83F... ~23F hotter than now.

and humans didn't exist then... so maybe we should try to keep temps ideal as possible for as long as possible? nothing lasts forever, sun will burn eventually as it grows brighter and brighter, but doesn't mean you should add coal to the fire if you don't have to...

 

[rruff]

and humans didn't exist then... so maybe we should try to keep temps ideal as possible for as long as possible? nothing lasts forever, sun will burn eventually as it grows brighter and brighter, but doesn't mean you should add coal to the fire if you don't have to...

No humans didn't exist then, but it wasn't because the climate didn't suit us. The population of mammals exploded when it was 23F warmer than now.

Ideal as possible?! Earth's temperature for the last 3 million years has been far from ideal for humans. A mere 20k years ago much of the world was covered in a massive sheet of ice... and this is/was due to happen again in the next few thousand years. If you want a disaster, just do nothing and let that happen...

 

[Caring1]

In danger of what?

Extinction events.

 

[the54thvoid]

No mini-ice age coming soon:

There Is No Impending 'Mini Ice Age' - NASA Science

“Pink elephant in the room” time: There is no impending “ice age” or “mini ice age” if there’s a reduction in the Sun’s energy output in the next several decades. Through its lifetime, the Sun naturally goes through changes in energy output. Some of these occur over a regular 11-year period of...

climate.nasa.gov

Regular rhythms? Sure - we would be a due an ice age at some point. Nobody can predict when but the amount of CO2 dumped into the atmsphere will delay that.

Critical insolation–CO2 relation for diagnosing past and future glacial inception - Nature

A critical functional relationship between boreal summer insolation and global carbon dioxide concentration is proposed and tested with simulations; it accounts for the beginning of the past eight glacial cycles and predicts that the next one is unusually far off, even without the effect of...

www.nature.com

And isn't that good? We'll not all freeze? No, that's bad. Glaciers will melt further, reducing water sources for continental areas. The seas will keep rising, displacing millions. Arable farmland will diminish (already over cultivated - another debate). Let's move up the mountains (where we can't farm as much). Basically, human conflict will be the main focus of a world with a moving population and smaller resources.

 

[64K]

From the NASA Climate site:

This graph, based on the comparison of atmospheric samples contained in ice cores and more recent direct measurements, provides evidence that atmospheric CO2 has increased since the Industrial Revolution. (Credit: Luthi, D., et al.. 2008; Etheridge, D.M., et al. 2010; Vostok ice core data/J.R. Petit et al.; NOAA Mauna Loa CO2 record.)

Evidence - NASA Science

Takeaways The rate of change since the mid-20th century is unprecedented over millennia. Earth’s climate has changed throughout history. Just in the last 800,000 years, there have been eight cycles of ice ages and warmer periods, with the end of the last ice age about 11,700 years ago marking...

climate.nasa.gov

 

[Space Lynx]

From the NASA Climate site:

This graph, based on the comparison of atmospheric samples contained in ice cores and more recent direct measurements, provides evidence that atmospheric CO2 has increased since the Industrial Revolution. (Credit: Luthi, D., et al.. 2008; Etheridge, D.M., et al. 2010; Vostok ice core data/J.R. Petit et al.; NOAA Mauna Loa CO2 record.)

Evidence - NASA Science

Takeaways The rate of change since the mid-20th century is unprecedented over millennia. Earth’s climate has changed throughout history. Just in the last 800,000 years, there have been eight cycles of ice ages and warmer periods, with the end of the last ice age about 11,700 years ago marking...

climate.nasa.gov

Thank you for posting this.

Also, if 125 faren in western Canada does not scare the deniers, perhaps some context would be helpful: Death Valley desert record temp is like 134 faren and hits 125-130 faren on RARE days... so... yeah... wth.

I know deniers will continue to deny because that's what tribalism and the limbic system does, but eh.

 

[R-T-B]

Also, if 125 faren in western Canada does not scare the deniers, perhaps some context would be helpful: Death Valley desert record temp is like 134 faren and hits 125-130 faren on RARE days... so... yeah... wth.

I know deniers will continue to deny because that's what tribalism and the limbic system does, but eh.

It was 118 in Olympia, WA recently. Most of Olympia does NOT have air conditioning because it "never gets hot." People died.

This is not normal, it hasn't been for some time.

 

[xtreemchaos]

In danger of what?

Extinction !, err bud are you following what we are talking about or having a laugh. im happy with both by the way .

 

[the54thvoid]

Extinction is a long way off. Let's not muddy the science thread with conjecture based on fear. That doesn't help the cause to push scientific understanding.

What is visible now is growing instability in global patterns. Humans can adjust but it needs to be done rationally. Cooperatively. Temperate climates will suffer less than those places where humans have engineered a habitable zone (looking at you dust bowl America).

 

[xtreemchaos]

Extinction is a long way off.

now that is what we have as a problem is, brushing it under the carpet isnt the way bud. you are trying to control what we are talking about which is very under handed. not fear- reailty its a fact if we dont change we die. {redacted i need to put my brain in gear before using my keyboard}

 

[qubit]

Humans can adjust but it needs to be done rationally.

And that's the million dollar problem. I hope mankind can get past all the short term self interest and corruption, not to mention criminals exploiting the situation for their own gain. I think we will, but not before significant damage is done. Just my 2 cents.

 

[Deleted member 24505]

And that's the million dollar problem. I hope mankind can get past all the short term self interest and corruption, not to mention criminals exploiting the situation for their own gain. I think we will, but not before significant damage is done. Just my 2 cents.

Maybe we need to stop destroying each other for conflicting beliefs first, maybe then we could actually get to sorting the other problems out. Nothing will ever change while the world continues to be so secular. Until humans can truly work together to sort this crap out, nothing will change. Until it stops being me and starts being us we are screwed.