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Global climate change => higher air temperatures => more water in the air => more water available to fall out of the air.
by mirimir 7y ago
Global climate change => higher air temperatures => more water in the air => more water available to fall out of the air.
- newvoiceoldphne 7y agoCloud formation is also thought to inversely correlate to sunspot activity. With the lull in solar activity, that very well could be the cause.
- 6d6b73 7y ago=> more snow in winter => mini ice age
- chrisco255 7y agoAre some predicting a mini ice age as opposed to warming? A mini ice age worries me more than warming.
- 6d6b73 7y agoYeah - https://www.iflscience.com/environment/we-could-be-heading-mini-ice-age-2030/ https://www.iflscience.com/environment/we-could-be-heading-m...
- viraptor 7y agoIt's weird that they call it "mini ice age" then follow up with - we had one in 17th century, London got temperature below 0 in winter. Not what I imagine from the name.
- deleted 7y ago[deleted]
- Smoosh 7y agoHumans are bad at distinguishing small but close from large but far away for abstract ideas like climate.
- plicense 7y agoI think humans are pretty good at warming things up. So I would take a mini-ice age over global warming.
- mises 7y agoYeah, heating is usually more efficient than cooling, because energy is usually produced with some kind of heat output. All though agriculture is a serious concern; you might starve several million people in africa.
- hirsin 7y agoSurprisingly this is not true. A watt of energy can only produce a watt of heat, but can remove several watts of heat from a space. That said, we're much better setup to increase total entropy in the atmosphere than decrease it (via heat sinks eg)
- kevin_thibedeau 7y agoThose displaced Joules are just moved somewhere nearby and are joined by the energy spent moving them.
- hirsin 7y agoYes, hence my second statement and use of "space" in the first.
- mises 7y agoFrom a purely scientific view, yes, you can move energy easier than you can cool it. However, people in hot climates usually prefer cold air blowing, which takes more energy to chill.
- chrisco255 7y agoNot just Africa. Probably every continent, because yields would tank and growing seasons would shrink.
- mirimir 7y agoNo, more rain in winter ;)
- mihaifm 7y ago=> more water in the air => increased greenhouse effect => rising temperatures => even more water in the air
- mirimir 7y agoYes. And the greenhouse effect overall is mostly due to water in the air. But water content is very sensitive to temperature. And when CO2 level increases, that also increases water content. So water is like an amplifier for CO2 changes. Edit: Maybe someone thinks that this is a GCC-denial argument. It's not. Water vapor is in fact the major greenhouse gas: 36% (in dry areas) to 72% (in humid areas) of total greenhouse forcing.[0] 0) https://en.wikipedia.org/wiki/Greenhouse_gas#Greenhouse_gases https://en.wikipedia.org/wiki/Greenhouse_gas#Greenhouse_gase...
- Gibbon1 7y agoI think that's what I read. Water vapor amplifies the green house effect of increased CO4 and CH4. And figuring out the exact forcing constant is complicated by weather patterns and cloud cover. One of the other things that scares me is weather is chaotic. Patterns repeat year over year. But global warming could cause those patterns to change. Possibly permanently as far as human civilization goes.
- billions 7y agoThe most powerful supercomputers in the world are focused on weather analysis and they can only project a few days out. Yet, some people think they've got it figured out.
- justwalt 7y agoThat does put things into perspective, a bit.
- ceejayoz 7y agoNah, it's a common talking point, but it's highly flawed. It's like claiming that because we can't predict if the stock market will go up or down tomorrow, we can't determine whether we're in a recession or a boom time. Short-term weather is fairly chaotic (and we've gotten a lot better at predicting it over the last 50 years). Long-term trends are different.
- jessaustin 7y agoIf you can figure out recessions and booms in real time you can make lots of money.
- 6d6b73 7y agoThe most powerful supercomputers in the world are not even close in processing power of a 4 year old. Isn't it possible that some people can see patterns that the supercomputers can't?
- chrisco255 7y agoSure, but those supercomputers aren't autonomous, they're programmed and designed by thousands of human adult experts.
- 6d6b73 7y agoAnd these people can make mistakes or be biased. If we can't predict what the weather in our hometowns will be how can we predict how will the climate change?
- mc32 7y agoShould we expect dry (arid) regions around the world to experience more rainfall?
- btilly 7y agoThat depends on the region. As a well-known example, rainfall in California will decrease. Here is an explanation. Take a pot of water. Heat one side. The water will start to circulate, come up where it is hot, fall where it is not, then cycle back. The Earth's atmosphere does that as well. It rises in the tropics, spreads out, falls in temperate zones, then comes in. These circulation patterns are called the Hadley cells. They explain a lot of things. For example air that came from the equator, then spread out, is moving faster than the ground below it. That's the jet stream. And where it falls it is still moving. That sets up the prevailing wind on land, and the trade winds at sea. One thing that they help explain is where things are dry. You see when air rises, the water falls out. So where air comes down, it is dry. Therefore the latitudes where it falls have lots of deserts. Now one of the effects of global warming is that the Hadley cells get less stable, and also expand. Which means that arid zones in Mexico move north, and the Southern USA gets drier. But this comes with more instability in weather patterns. So you see, it is complicated. Overall wetter does not mean wetter where you are...
- mirimir 7y agoSome, yes, I've read. Africa and Indonesia may get wetter, and the Sahara could even switch back to rainforest. But my "more water, so wetter" comment was about global averages. Given that global air and ocean circulation will change, some areas will probably get drier. Such as the US Midwest and Southwest, and perhaps the Amazon. https://news.uci.edu/2018/04/27/scientists-project-a-drier-amazon-and-wetter-indonesia-in-the-future/ https://news.uci.edu/2018/04/27/scientists-project-a-drier-a... https://www.northcountrypublicradio.org/news/story/34232/20170704/climate-change-could-green-the-sahara-and-unleash-monster-hurricanes-on-the-u-s https://www.northcountrypublicradio.org/news/story/34232/201...
- ajmurmann 7y agoAnecdotally it looks like parts of central Europe might also get drier.
- rolltiide 7y agoIts not that I disagree, I just want to point out this never explains what was going on the last time the records were hit and by proxy a snapshot of the current record
- fwip 7y agoThis record was set at the end of June 2019. The last time this record was set was May 2019. The time before that? You guessed it. April 2019. I'm willing to wager it's the same thing going on as "last time."
- ChuckMcM 7y agoYup, pretty much exactly. The interesting side effects are the formation of more clouds (in the stratosphere they make things warmer, in the troposphere they make things colder), and bigger temperature shifts in the air when the water finally condenses out in liquid form (more mass to phase change, more net temperature change).
- phkahler 7y agoRecord air traffic. Record cloud seeding. Record rainfall. Record heating.
- umvi 7y agoAre there any record-setting weather patterns that global climate change can't account for?
- lovich 7y agoIts changing the climate so no, there is probably no record setting weather it cant account for. Even if this was less water it would be listed as the driest 12 months on record.
- mirimir 7y agoIn the weather/climate realm, effects of increasing CO2, CH4, etc arguably dominate. Next important, I think, are changes in land use. Such as heat island effects of cities. Or deforestation reducing local to regional rainfall. So yeah. In areas that are getting warmer, such as the Arctic, new records will be about high temperatures and less sea ice cover. In areas that are getting drier, it'll be about drought. And in areas that are getting wetter, it'll be about flooding.
- throwaway934898 7y agoNo, any layman can easily construct a reasonable sounding explanation tying any of these odd patterns to climate change. It doesn’t matter whether or not they are actually caused by climate change. It’s a level of annoying to me similar to when my dad uses a cold winter as evidence that there is no warming going on.
- sdinsn 7y agoExcept increased rainfall is actually linked by scientists to global warming.
- tomatotomato37 7y agoAre they using the same models that also predict colder winters, hotter summers, and more droughts? I feel like everyones making different assumptions when building their climate models, so you end up with a model that show more intense A & B but not C, and than another model showing more intense A & C but no change in B, and a third mentions only a change in B and something about D, but by the time it makes it to the general populace the only thing anyone sees is that climate change is causing A, B, C, D, E, and F. Not to their fault, but with complex models like climate, a small change can butterfly wildly.
- jupiter90000 7y agoGuess it is somehow not happening in UK though, weird! :-) https://www.metoffice.gov.uk/research/climate/maps-and-data/uk-temperature-rainfall-and-sunshine-time-series https://www.metoffice.gov.uk/research/climate/maps-and-data/...
- TheRealPomax 7y agoTo be fair, the UK is not in the US, no matter how many high school students might guess that it is...
- jupiter90000 7y agoSo US-only warming instead of global? Confused. Admittedly I may not understand, is US is expected to be impacted differently by global warming than other countries?
- undersuit 7y agoThe landmass of North America will experience different effects of climate change than other landmasses. There might be similarities between it and other areas, like South America, but South America has a large cold continent to it's south while North America has a small cold ocean to it's north.
- jupiter90000 7y agoHave any good resources to learn more on this? Thanks if so
- mirimir 7y agoIt's certainly gotten warmer in the Arctic.
- noelsusman 7y agoYes. Are you trying to imply that global warming isn't happening?
- refurb 7y agoAnd if we were in the middle of a drought?