Australia’s Darling River is running dry
widerimage.reuters.com
widerimage.reuters.com
Australia has limited water resources and laws that treat it as unlimited. It will be incredibly hard to square that circle. Imagine being told your entire business is toast because Sydney has no drinking water and you’ll have some idea of how toxic it’s going to be _before_ it get politicised.
If you require farmers to pay full price for the water they consume, they will never be able to afford it.
Doesn’t mean capitalism is wrong in this case, though.
Edit:
Wes it does, in this case. This is not some software startup. The water, which ostensibly belongs to all, is the input to this wealth.
Plus, that's a stupid use of water that should not be rewarded.
Original below ----------------
of course it does. It's "captialism" and we must bow down before it and not question any of the inputs to the money being made.
In other words: let the cotton farmers get stuck with paying for the water, and the business will simply dry up, and the water will be used for economically sound purposes.
There are plenty of ways to manage water rights so that you have a reasonable amount of farming and other uses also get to exist.
It necessitates growth in the collective consciousness of humanity, similar to how addicts cannot give up their addictions without growing as people.
*edit
Though, come to think of it, that may only be two countries...
The problem with water in Australia, is the politics. Australians have one of the most heinous political systems around, yet seem adequately comfortable with their lot.
I mean, its the nation that sat by and watched the Great Barrier Reef die. Care of the land has not been a priority in Australia for about 200 years...
(Not trolling, Aussies! She'll be right mates!)
[updated] As per a comment below, Australia and the Darling in particular have a water market https://www.mdba.gov.au/managing-water/water-markets-and-tra...
https://www.google.co.uk/amp/s/amp.theguardian.com/australia...
I read somewhere (can’t find the link) that the rights are allocated on the basis of the previous year’s flow. As you can see from the article, this still means people are pulling out water when there’s not enough water to go around. (There’s the usual complaints about speculation, but IME if you don’t have speculators you don’t have a functioning market. There’s plenty of data from regular financial markets about this.)
Apologies.
Agribusinesses are growing rice, cotton, and almonds in the most arid farming region in the world.
The MDBA is a toothless regulator with the government deliberately reducing their budget any time policing or enforcement action is actually performed.
The MDBA could be a self-funded statutory authority if it was allowed to collect water licensing fees directly, with approvals for dams and other water works going through the MDBA instead of the various states.
Ideally there would be no scope for ministerial direction, or at least any such direction would only be through publicly visible instruments.
Also the NDBA should have the authority to demolish illegal dams and water-affecting earth works. For the moment the worst it can do is write strongly worded letters.
And in the meantime we have Queensland farmers continuing to claim that all the water falling on their land should be theirs to do with as they please.
That sounds close to the argument that we shouldn't do anything about climate change since the Earth naturally warms and cools.
Not at all. My point is that if this is taken as an example of climate change it does a terrible disservice to real climate science, because this is something that has been happening on a regular basis for as long as we have records.
"At Menindee, 830 km west of Sydney, despair has turned to anger as residents blame the government for exacerbating the drought by drawing down river water in 2017 for irrigation and other uses downstream."
Edit: Also doesn't cover the fact that they diverted water from the lakes that supply the river in low water times. This leaves no water for dry times.
Sure it will. If water costs these farmers $1,000,000/gallon, they would use 0% of what they do now, since nobody would buy a $4MM avocado. That's absurd, but it does demonstrate that there is a price for water that will lower its usage.
The goal should be to price water such that enough is left downstream for personal consumption. Doing so will raise prices on agricultural goods, which will decrease demand, also lowering water consumption.
[1] https://www.mdba.gov.au/managing-water/water-markets-and-tra...
Edit: Ah, looks like yes; the government was working on undoing this mistake by buying back water rights at large expense, but stopped because, errr, politics. Although it sounds to me like the real mistake here was maybe giving away rights to use water in perpetuity in the first place (which requires the government to "buy back" such rights), instead of selling non-renewable allocations by the litre (which would allow them to just raise the price depending on conditions, or auction the available water yearly etc).
https://www.abc.net.au/news/2019-04-23/water-buybacks-everyt...
No, the original design was done by CSIRO, the government scientific arm. AFAICT, is was pretty well done. The problem is entirely political.
The river system is about 3000km long, and passes through 4 states. The state politicians suffer almost no repercussions by white anting the agreement or just wilfully breaking it, but often get lots of kudos from their local constituents by shoving it to the other states and the federal government.
The media has done a number of exposés on farmers violating the agreement with no serious repercussions because the local state politicians - and the states run their respective police forces. It then degenerated into one state saying "if they are going to do that then we will too", aka tragedy of the commons.
But, ask any politician and they will tell you it can only be fixed in a drought, when farmers all over the country are going broke and leaving the land in droves, and it's plain to every one if you want to avoid a repeat there are no other solutions bar a compromise that everyone follows. This is the first country wide drought since the one that gave rise to the original agreement. It will need to go on for a bit longer before some sensible things happen, but we live in hope.
So despite how it's painted in the article, it's really an opportunity to put our house in order.
And the state politicians allow this because of competition, basically subsidizing local water by letting people draw it for free, while externalizing the cost to other states?
We produce more food that we use, and the food we consume is so processed it is killing us.
I am not optimistic about man's will to change.
Water is completely price inelastic economically. There is no alternative to it and it is essential to the persistence of life. Should it be priced? If it requires labour or other external factors that bear cost, sure. Should its price be tweaked as an economic lever? Even if that worked (it wouldn't for something inelastic like water anyway) I would still say no.
Using water's price as a disincentive can only possibly work in non-essential use cases, which doesn't seem to be the case in this Australian example.
Certain alternatives such as desalination and water reclamation in industrial processes don't change the elasticity of water economically; it's still required. They just increase the amount available in the pool (excuse the pun) and even then these too bear cost for implementation and maintenance and would not be provided free (which makes sense).
It is not priced too low, it is priced so that EVERYONE has access to water.
Water security is not damaged. Government manages things better than capitalism does. For example the telecommunication monopolies..Capitalism can't get the INTERNET right and you want to apply that to water? Also see American the boondoggle healthcare system....
Resources having the properties of infinite demand but limited supply do not follow the normal rules of capitalism and should be regulated by policy instead.
Not everything fits into the rules of capitalism, and the fact that you believe it's the solution for our most precious resource is terrifying.
I think the consensus across the board is "yup, it does, and it would help massively" though it always came down to money and how it was going to get funded.
Side tangent: I cannot for the life of me understand the argument for "well, yeah, climate change is bad, but let's think how much this might cost to fix...". When it comes to existential threats to our mere existence, how is cost a factor? Talk about the definition of short sighted! And more, it's super short sighted on the money aspect too. We make changes to what is acceptable, how we do things, and yeah, it might cost a ton to begin, but we all know from history that amazing amounts of money are to be made in those revolutions too. This is not a zero sum game.
It's not sustainable, but our political and economical systems are structured in such a way that we sacrifice long term sustainability for short term gains, such as getting reelected for a four year term or making the quarterly goals.
A few words changed/added and we have solutions that have a bunch of advantages:
- Lower cost (startup and running)
- Faster to deploy (Tapping existing production streams)
- Ability to scale more easily based on regional needs (while most of the population live near the coast, there's still a significant population that live inland who are most at risk from water shortages. There's not a national grid that covers everyone)
- More acceptable to our regional neighbours (Australia using Nuclear power tech that can be pivoted to produce Nuclear weapons would likely trigger our neighbours to also have this ability)
- More acceptable to the locals that have to live near it
- Safer (both a direct operational safety aspect, but also less likely to trigger regional conflict)
- Can be deployed close to/in existing cities and opportunity for dual-use sites (eg solar ontop of buildings, carparks; wind in existing farm fields) with minimal negative impact, and possibly positive impacts for land-owners.
Why pick Nuclear when it'll take decades to deploy, cost far more and piss off our neighbours?
"Reduced to a string of stagnant mustard-coloured pools, fouled in places with pesticide runoff and stinking with the rotting carcasses of cattle and fish, the Darling River is running dry."
This river runs dry regularly and has even before the industrial revolution. Guess what happens when rivers run dry? You get stagnant mustard colored pools. The sentence is trying to pull on emotional heart strings with nonsense. You know what else you find naturally in dried up rivers? Dead fish and animals. You know what you find in every body of water around the world today? Pesticides from farm runoff. Does it matter? Sometimes.
In short, just untrustworthy nonsense. I personally am concerned about my impact on the environment, but I consistently vote against collective action because articles like this make me really afraid of how crazy people are and what nonsense they'll believe.
2) It would be even better if Australian farmers also recognised that and didn't grow water intensive crops there.
3) The "climate change issue" is not polarised.
Climate change is very implicit in the context of the article, even if not explicitly stated.
Was the article incorrect in any specific way? If that is the case, I would love to know where it was wrong, specifically.
If the point isn't to talk about climate change there isn't much to this article. Australia frequently experiences droughts. They are taken with a high quality camera but all the photos are basically classic Australian bush scenes.
Sure there is. The article talks about non-climate-change human impacts, like the use of upstream water for irrigation. There's discussion to be had around that.
However the article is a puff piece and is at best alluding vaguely to those more interesting issues. It is only inspiring discussion of them as people are trying to find lenses to interpret it that aren't climate related. It'd be lovely if HN suddenly decided to take a deep interest in irrigation systems but I'll wait for a few more articles on the subject to hit the front page before I start believing it. The comment threads look more like we are playing a game of finding links that aren't climate related.
When the stakes are so high, where we are literally risking the future of the human race, I'd definitely lean towards the side of action and change even if they sensationalize some facts sometimes in order to motivate change in others.
It doesn't blame anything on climate change. It just says this:
> ... residents blame the government for exacerbating the drought by drawing down river water in 2017 for irrigation and other uses downstream.
That's it - the only mention of human fault in the entire thing.
The problem is that reporting on both sides is garbage laden with misunderstandings and outright lies. This fuels the anti-climate movement, especially when it's coming from the 'pro' side like in this case.
I've been ringing bells about catastrophic climate change since the early 00s after being involved in a relevant research project, I'm the polar opposite of a denier, but the way that even 'pro climate change' media covers the topic is harmful to actually conveying it to the public because the media wants to put hyperbole on everything.
When the media over-stimulates the public by exaggerating every little thing to a BIG DEAL, the public becomes non-responsive to actual BIG DEAL issues.
This actively hinders action to manage catastrophic climate change. This is the same as the CIA handbook tactic to redirect activist movements to ineffective causes so that they're too activism-fatigued to act on an effective cause when one is presented.
"At Menindee, 830 km west of Sydney, despair has turned to anger as residents blame the government for exacerbating the drought by drawing down river water in 2017 for irrigation and other uses downstream."
Especially in Australia where 'drought' === 'climate change' === 'farmer issues'.
Is there a network of climate change science think tanks dedicated to framing the climate change debate in a way that benefits the climate change community?
Do climate scientists run social media "consultancies" to make a pro-climate change case on the major social platforms and smaller forums?
If any of the above happen - questionable, but let's pretend - they're at tiny outlier scale compared to the organised lies, smears, denial and general FUD put out by the denialist corporates.
You say you've been warning about catastrophic climate change since the early 00s. What in your opinion would be the best way to counter climate denial PR?
Because clearly simply informing the public of the facts isn't going to do anything against the noise being made by the denialist side.
With education. And with a factual description of the problem and the available solutions. With outright rejection of denialism. With rejection of feelgood non-activism like plastic straw bans and tree-planting measures. Don't get me wrong, those things are good and a step in the right direction, but they're far too little far too late compared to what must be done, and so they're inactivism that wastes public energy on measures that don't move the needle in addressing the problem.
This doesn't even fly with 'enlightened' crowds like HN out of the box because they'll tend to kneejerk about things like nuclear power + electrochemical CO2 sequestration despite it being the only realistic option to dig ourselves out of the hole we're in. Worth noting that the mainstream crowds in China/Russia are a lot more pragmatic about this than AU/UK/US.
I'm pretty sure this comment is going to be downvoted just for mentioning it, but I'll drop it anyway to genuinely answer your question. A lot of the folk I know in the field have basically given up hope to avert this and become gloom and doom in the last 5 years, including people you would've seen on TV at the Paris Accords. They are probably right. It's pretty depressing info to handle. I'm sorry I don't have a better answer, but people much smarter than me don't seem to have one either.
tl;dr: Like Bill Gates puts it, misdirected climate activists are actually a bigger problem than climate deniers at this point.
If instead we spoke about the issue factually, to the point and without trying to influence people's opinions with emotional devices, more stubborn people might listen to the idea.
It's a shame, because if ever there were a real enough reason for an evangelical to scream in the streets at strangers that the world is ending, this might be it. But it doesn't work, people don't listen to the screaming crazies.
I find this behavior deeply hypocritical and irresponsible. Worse, it is unproductive, because even a minimal sensationalization may trigger a lot of misguided (but sincere) opposition from climate deniers. Heck, even many rational people may be alienated by this!
As a matter of principle, I am disgusted by propaganda that contains falsehoods or exaggerations, even when it is for a good cause.
Any issue important to more than a few dozen people will involve propaganda, falsehoods, and exaggerations from both sides of the issue. Simple fact of statistics and human nature.
Letting that affect your evaluation of the facts is a mistake.
I never said I will change my opinion about the issue because of that. Only that I am disgusted by this behavior.
As a more practical effect, just a tiny speck of falsehood in the discourse of "my" side, turns any attempt to convince anybody on the "other" side as an endless discussion about that silly speck, agreeing that it is false, but nonetheless the main cause remains true. It is very tiring. Exaggerated propaganda is useful to create stronger echo-chambers, but not to convince people who are outside.
On what basis do you think your vote will change other peoples beliefs?
Vote differently please.
You seem looking for a reason to bash climate change and journalism in general.
> At Menindee, 830 km west of Sydney, despair has turned to anger as residents
> blame the government for exacerbating the drought by drawing down river water
> in 2017 for irrigation and other uses downstream.
As an Australian, it baffles me that we're trying to grow cotton and rice in the desert. I personally don't believe that farmers who make poor business decisions should be consistently bailed out by the government. I'd rather we pay for research into drought resistant crops, growing the right produce in the right climates, and failing that, retraining farmers and agri workers into new industries like solar. Lots of sun, not much water.
Doesn't stop us making dumb voting decisions every three years, though.
Is poor life quality in the West going to stop worldwide deforestation somehow?
What does "opposite" mean in your comment then, exactly?
I believe that Climate Change is mostly caused by deforestation, but how would any government stop 7B people from cutting down trees?
It is somewhat complicated by the fact the the Labor party was tarred by introducing a climate tax after promising not to.
They had a minority government due to some political shenanigans and had to form a loose coalition with the Greens for an electoral cycle. The Greens managed to negotiate in a carbon tax that was not well received. Labor is associated with the policy but their support for it was always tepid.
This is why aluiminium has only recently become a cheap resource, or indeed a resource at all, despite being incredibly common and having a low melting point.
Good power sources: hydro, geothermal. Which is why we see smelters in places with hydro and geothermal.
Australia should go nuclear. Plenty of places to put plants. A dozen plants would generate all the electricity they need and they can stop burning coal.
https://www.metalbulletin.com/events/download.ashx/document/...
https://www.power-technology.com/news/australia-singapore-po...
The Australia-Singapore Power Link (ASPL) project has been developed by Singapore-based company Sun Cable project is being developed by Singapore based company Sun Cable at an estimated cost of $14bn (A$20bn). With a storage facility based in Tennant Creek in Australia’s Northern Territory, the project will include a 10GW solar farm and a 20-30GWh storage facility which will transport 3GW of power to Singapore.
ASPL was given major project status by the Northern Territory Government in July 2019 and will begin producing power in 2027.
It sounds just this side of science fiction to me, but it will be exciting if the project actually goes forward as planned.
The hypothesis that draconian reduction or even elimination of CO2 emissions by humans will stop the climate from changing is not a scientific fact. It's the opposite: it's a hypothesis based on computer models that have been falsified by the data.
Small difference but I think it properly orients the discussion around evidence
To fully appreciate the gravity of the IPCC's misadventures in "climate science", here is a seemingly hyperbolic, but actually quite accurate analogy of the situation:
A group of 100 people have been consuming candy, water, and Raid®. Among those 100 people, 20 have died within a 1 month period. A committee is formed to solve this crisis. The committee tasks a group of scientists with determining the cause of death, and they are told, "Here is a group of 100 people, 20 of whom have died, all of which have been consuming candy and water." A consensus is formed among the scientists; obviously the candy is causing the deaths, since water is known to be safe.
When some of the scientists discovered that the subjects had been consuming Raid®, they reached out to the committee to ask why the Raid® consumption had not been in the data, and the committee decided that, since the first ingredient in Raid® was water, and since water was known not to be a health risk, it was of little significance in the study.
Now, imagine knowing all of the above, and then trying to be patient while listening to everyone you know become a "candy science" expert over the ensuing decade, and seeing your favorite news show, movie actor, musician, etc. calling for a candy tax, and constantly berating you as a "candy denier" when you question the consensus... then, those same people begin calling for candy-related fines, fees, and taxes that will affect your livelihood, and then facing the irony of those same people berating you as ignorant swill living in a fly-over state that's simply "voting based on ideology"; imagine that.
1. https://progearthplanetsci.springeropen.com/articles/10.1186...
While you're at it, please explain, with reproduced, peer-reviewed sources why you think the greenhouse effect, which directly ties CO2 to warming doesn't exist.
https://www.bbc.com/news/science-environment-39054778
https://www.theguardian.com/higher-education-network/2013/oc...
2. Please provide any evidence that I made claims that the greehouse effect doesn't exist.
Okay, so it does exist - that's great! We're ~1.3C above the pre-industrial average today.
Which part of this 1.3C came from the greenhouse effect, which part of it comes from a collection of odd one-off factors, and which part of it came from the magical IPCC-ignored radiation spectrum that has nothing to do with the greenhouse effect?
Please, provide numbers. Not hand-waving - but numbers.
Also, since it does exist - how much warming would the greenhouse effect be expected to contribute when we hit 500 ppm carbon? 650 ppm?
Your analogy is creative, but if you really think the IPCC have no statistician (or that you are a better statitician than them), you might want to read more about the work of IPCC WG1, that will cure the Dunning-kruger while allowing you to work the statistics by yourself.
And yes, the IPCC WG3 is alarmist and ignore some conclusions from the WG2, but their job is to push the politicians.
I was like you (well, i was skeptical about the WG3 conclusions and the human greenhouse contribution) so i did something really special: i read the rapports! Yes, i know, its crazy, but this is something i think every skeptic should do: read. This is crazy that learning to read scientific papers is not taught until year 3 of college (at least in my country), but i assure you its not that hard, even if you never went to college.
Also, somebody else replied with something similar (something about me denying the greenhouse effect existed)… I’m not quite sure how either of you came to the conclusion that I didn’t believe the greenhouse effect existed. I think it’s a pretty big leap in logic to go from “the greenhouse effect exists” to “because the greenhouse effect exists, the greenhouse effect via CO2 from human activity is the primary cause of global warming”.
For example: https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_TS_FI...
>"Solar forcing is the only known natural forcing acting to warm the climate over the 1951–2010 period but it has increased much less than WMGHG forcing, and the observed pattern of long-term tropospheric warming and stratospheric cooling is not consistent with the expected response to solar irradiance variations. Considering this evidence together with the assessed contribution of natural forcings to observed trends over this period, it is assessed that the contribution from solar forcing to the observed global warming since 1951 is extremely unlikely to be larger than that from WMGHGs. Because solar forcing has very likely decreased over a period with direct satellite measurements of solar output from 1986 to 2008, there is high confidence that changes in total solar irradiance have not contributed to global warming during that period. However, there is medium confidence that the 11-year cycle of solar variability influences decadal climate fluctuations in some regions through amplifying mechanisms. {8.4, 10.3; Box 10.2} "
So there are multiple avenues of evidence that conclude that solar forcing isn't the cause of the temperature increase. This includes direct measurements of "total solar irradiance" (TSI).
And the numbers at the bottom in brackets? Those are sources for the claims made in that paragraph!
10.3 and "Box 10.2": https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_Chapt...
The above source even has an explanation for how the causes are determined: "FAQ 10.1 | Climate Is Always Changing. How Do We Determine the Causes of Observed Changes?"
Here is "8.4": https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_Chapt...
>"Total solar irradiance (TSI) measured by the Total Irradiance Monitor (TIM) on the spaceborne Solar Radiation and Climate Experiment (SORCE) is 1360.8 ± 0.5 W m–2 during 2008 (Kopp and Lean, 2011) which is ~4.5 W m–2 lower than the Physikalisch-Meteorologisches Observatorium Davos (PMOD) TSI composite during 2008 (Frohlich, 2009).The difference is probably due to instrumental biases in measurements prior to TIM."
The don't rely on single measurements of "total solar irradiance" either.
> "Since 1978, several independent space-based instruments have directly measured the TSI. Three main composite series were constructed, referred to as the Active Cavity Radiometer Irradiance Monitor (ACRIM) (Willson and Mordvinov, 2003), the Royal Meteorological Institute of Belgium (RMIB) (Dewitte et al., 2004) and the PMOD (Frohlich, 2006) series. "
The above claim that "all energy from the sun that is not a part of a specific EMR spectrum" is missing when the conclusions were drawn is just plain wrong.
from 8.4:
>"Solar spectral irradiance (SSI) variations in the far (120 to 200 nm) and middle (200 to 300 nm) ultraviolet (UV) are the primary driver for heating, composition, and dynamic changes of the stratosphere, and although these wavelengths compose a small portion of the incoming radiation they show large relative variations between the maximum and minimum of the SC compared to the corresponding TSI changes. As UV heating of the stratosphere over a SC has the potential to influence the troposphere indirectly, through dynamic coupling, and therefore climate (Haigh, 1996; Gray et al., 2010), the UV may have a more significant impact on climate than changes in TSI alone would suggest. Although this indicates that metrics based only on TSI are not appropriate, UV measurements present several controversial issues and modelling is not yet robust.
Multiple space-based measurements made in the past 30 years indicated that UV variations account for about 30% of the SC TSI variations, while about 70% were produced within the visible and infrared (Rottman, 2006). "
It is correct that UV is only 30% of TSI. Hence why TSI was used to make conclusions about the impact of "solar forcing" on the climate instead of just UV.
The links I give are to just a couple sections of just one of the reports (the "physical science basis" one).
Here is the full "physical science basis" report: https://www.ipcc.ch/report/ar5/wg1/
TSI stands for total solar irradiance. This is the EMR spectrum I’m referring to. If you continue to read the report from the IPCC, you will notice there is no mention of energetic particle precipitation (EPP), or any particle forcing of any kind.
So yes, the IPCC report is extraordinarily thorough and exactly perfect in everything that it purports to be; unfortunately it completely leaves out the largest part of the equation. Please see my analogy above.
Is there any proof that EPP is significant?
What about the other parts of the report?
For example:
>"It is extremely likely that human activities caused more than half of the observed increase in global average surface temperature from 1951 to 2010. This assessment is supported by robust evidence from multiple studies using different methods. In particular, the temperature trend attributable to all anthropogenic forcings combined can be more closely constrained in multi-signal detection and attribution analyses. "
In order for climate change to be primarily driven by EPP or particle forcing instead of anthroprogenic forcing, it would have to be the case that either:
A. Somehow, anthroprogenic forcing is much less than the multiple avenues of evidence show. Here:
https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_Chapt...
https://www.ipcc.ch/site/assets/uploads/2018/07/WGI_AR5.Chap...
https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_TS_FI...
https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_Chapt...
or
B. There is something unknown that offsets the impact of anthroprogenic forcing, but would not have offset the impact of particle forcing in the absence of anthroprogenic forcing.
In the absence of evidence, it is a big claim to make that either of these things are the case.
The conclusion (temperature-changing effects of human activities) is derived specifically from taking the local maxima of warming we’ve seen in this very short window, subtracting the known non-human factors (of which the sun is one... hence the importance of the missing data), and then attributing the rest to human activities.
In other words, your statements, pertaining how we can deduce that their conclusions are correct, save for A or B (above), are the most quintessential example of “begging the question”.
Another important bit that I didn’t even mention in my original comment is that, not only does looking at TSI ignore other particle forcing qualities of solar phenomenon, such as flares and sunspots, But it also ignores the fact that, during such events, solar irradiance is measurably decreased. This means that the assumed human factor needed to justify the perceived temperature increase in the models is actually raised in such cases. This means that when using the models to predict the temperature on the earth, the models will actually predict that human activities that cause warming increase during solar events.
Regarding below replacement birth rates - the world population is still growing. The fact this is happening suggests that "most parts of the world" as you say do not have below replacement birth levels.
Most of the population growth is through ageing, you can have a below replacement level birth rate and expanding population if people live longer.
Not only this but the places that are still growing their population have negligible emissions compared to the developed world.
If there was a river, there was either forests or coastal rains. Would not be uncommon to find that the landscape was more humid in just two or three generations ago.
The culture to burn wild plants each year to avoid fire will eliminate the water. Is a vicious circle. Less water in soil equals to more risk of fire, so you start burning the soil, so you have less and less water and you need to keep burning .