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Re:Oceans 'soaking up more heat than estimated' by DennisP on Thursday November 01, 2018 @07:18AM (#18352813)
I do that stuff but it's not going to save the world.

To save the world we need: a substantial price on carbon, a faster path to developing advanced nuclear power (in addition to continuing renewables deployment), a major rollout of lab-grown meat as soon as it's affordable with decent quality, negative emissions methods both technological (direct air capture) and biological (kelp, reforesting), and maybe some kind of solar radiation management if things go too far.

In short we need a global WWII-level effort. Instead we're encouraging people to ride bikes and eat their veggies.

Re:Oceans 'soaking up more heat than estimated' by Vinnl on Thursday November 01, 2018 @07:29AM (#18352887)
I think all of these things are set in motion by people making efforts like going vegetarian.
Re:Oceans 'soaking up more heat than estimated' by hueving on Thursday November 01, 2018 @07:44AM (#18353001)
No, people making personal efforts like that has the opposite effect. It makes them think they are doing something that matters so they don't put any effort into pushing for the drastic changes required to fix the problem.

People making individual efforts like that is about as useful as praying when it comes to preventing tragedy of the commons scenarios.

Re:Oceans 'soaking up more heat than estimated' by Vinnl on Thursday November 01, 2018 @10:16AM (#18354047)
I know that people sometimes excuse bad behaviour by their other bad behaviour; however, to stick with the vegetarian example: more and more people around me, and in my country and general, have been going vegetarian, and this process is only accelerated because it is easier than ever to become one due to supermarkets and restaurants catering to this growing group.

So sure, people are not going to be perfect immediately, but there's no doubt that even the non-vegetarians are far more aware of these issues due to the number of vegetarians around them. Meanwhile, the environmentally-friendly parties in my country and the surrounding ones have been growing in popularity.

Besides, I'm not quite sure how you think people are going to be pushing for drastic changes if every step towards that actually is a step away from it. Would actively dumping toxic waste in our rivers be better?

For change to happen, there needs to be a widespread push for it, and that widespread push isn't going to happen unless awareness spreads. Sure, it might already be too late for that push to make a difference, but about not doing anything we can at least be sure that it will not make a difference.

Re:Oceans 'soaking up more heat than estimated' by your-nanny on Thursday November 01, 2018 @09:08AM (#18353510)
both are true depending on the circumstance. for example going vegetarian encourages restaurants to offer more vegetarian options making entry into a vegetarian diet easier for others. Riding a bicycle makes car drivers more aware of cyclists, more awareness means it's safer to bike, means more will be willing to do it regularly, and more people who will advocate for bicycle friendly communities.
Re:Oceans 'soaking up more heat than estimated' by ekzy on Thursday November 01, 2018 @08:11AM (#18353169)
You could say that the effort is vain, but saying that it "has the opposite effect" is quite a strong statement. I am interested to hear how individual efforts of going vegetarian/vegan are contributing to global warming. And could you expand on "putting effort into pushing for the drastic changes"?
Re:Oceans 'soaking up more heat than estimated' by your-nanny on Thursday November 01, 2018 @09:19AM (#18353587)
Sometimes when people go to the gym, they give themselves a pay on the back and leave to iver eat their next meal. If, making small sacrifices encourages more extravagant indulgences, then yeah, maybe it could.

However, I think that the second order effects need to be considered. As I mentioned in another post, sometimes you doing a thing makes it easier for others to do a thing, until a critical mass brings about a major change in state. For example, buying a fuel efficient vehicle encourages manufacturers to produce them. Eating and asking for vegetarian options encourages them to be offered, making it easier to become a vegetarian without being a stick in the mud. It can also change norms. Sometimes people won't do a thing because they don't want to go against norms. Like a guy out with his buddies ordering a burger instead of the salad he actually might prefer.

Re:Oceans 'soaking up more heat than estimated' by ForHackernews on Thursday November 01, 2018 @08:21AM (#18353228)
There are plenty of "be the change" types who don't vote, and who have disengaged from the political process.
Re:Oceans 'soaking up more heat than estimated' by verelo on Thursday November 01, 2018 @09:12AM (#18353539)
Like i see personal level actions as a leader to future large scale group actions. Similar to electric cars, they’re inaccessible by cost to most, but the high cost purchaser is their path to mass adoption.

Also, if a wealthy person cannot justify extra insulation to prevent energy waste, i sure don’t expect a poorer person to ever take the idea seeiously.

Re:Oceans 'soaking up more heat than estimated' by your-nanny on Thursday November 01, 2018 @09:22AM (#18353614)
funny you should say that because religious institutions have, historically, had a major role in preventing tragedies of commons.
Re:Oceans 'soaking up more heat than estimated' by andyjohnson0 on Thursday November 01, 2018 @07:25AM (#18352861)
> In short we need a global WWII-level effort.

I agree.

"It’s been a couple of weeks now since the IPCC report came out. You know what it says. If the whole damn species pulls together in a concerted effort “without historical precedent”— if we start right now, and never let up on the throttle— we just might be able to swing the needle back from Catastrophe to mere Disaster. If we cut carbon emissions by half over the next decade, eliminate them entirely by 2050; if the species cuts its meat and dairy consumption by 90%; if we invent new unicorn technologies for sucking carbon back out of the atmosphere (or scale up extant prototype tech by a factor of two million in two years) — if we commit to these and other equally Herculean tasks, then we might just barely be able to keep global temperature from rising more than 1.5°C.[1] We’ll only lose 70-90% of the word’s remaining coral reefs (which are already down by about 50%, let’s not forget). Only 350 million more urban dwellers will be exposed to severe drought and “deadly heat” events. Only 130-140 million will be inundated. Global fire frequency will only increase by 38%. Fish stocks in low latitudes will be irreparably hammered, but it might be possible to save the higher-latitude populations. We’ll only lose a third of the permafrost. You get the idea.

We have twelve years to show results.

If we don’t pull all these things off— if, for example, we only succeed in meeting the flaccid 2°C aspirations of the Paris Accords— then we lose all the coral. We lose the West Antarctic Ice Sheet and the Greenland Ice Shelf (not that it isn’t already circling the bowl, of course). Twice as many people suffer “aggravated water scarcity” than at 1.5°C; 170% more of the population deals with fluvial flooding. The increase in global wildfire frequency passes 60% and keeps going. Marine fisheries crash pole to pole. The number of species that loses at least half their traditional habitat is 2-3 times higher than would have been the case at 1.5°C. It goes on." [1]

(Edit) Yet in my experience nobody is talking about this. A few weeks ago the IPCC told us we have a gun to our head and a decade to solve the problem. A few days ago we learned that "population sizes of wildlife decreased by 60% globally between 1970 and 2014" [2]. And now we're on to the next thing and everyone is walking around like things are normal. People should be focussed on this and nothing else, but they're not.

And also: how exactly do I explain to my children that the world they're growing-up in is in a dire state and soon may not even be able to support anything like a normal life for them? Ideas anyone?

[1] The Adorable Optimism of the IPCC, by Peter Watts https://www.rifters.com/crawl/?p=8433

[2] https://www.wwf.org.uk/updates/living-planet-report-2018

Re:Oceans 'soaking up more heat than estimated' by ljcn on Thursday November 01, 2018 @10:29AM (#18354173)
> And also: how exactly do I explain to my children that the world they're growing-up in is in a dire state and soon may not even be able to support anything like a normal life for them? Ideas anyone?

They'll think it's normal, which is the real tragedy, but that's been happening for generations already. Your idea of normal is not as rich as your ancestors'. Wasn't North America abundant with wildlife when the Europeans arrived?

Tangential xkcd: https://xkcd.com/1321/

Re:Oceans 'soaking up more heat than estimated' by andyjohnson0 on Thursday November 01, 2018 @10:50AM (#18354392)
> They'll think it's normal, which is the real tragedy, but that's been happening for generations already. Your idea of normal is not as rich as your ancestors'. Wasn't North America abundant with wildlife when the Europeans arrived?

I'm not sure what you mean. I consider my life to be substantially richer than my ancestor's lives. I live in Europe, not North Americal, but yes there was more wildlife around a couple of centuries ago. It would be nice to have that again, but i'd settle for something like the current fairly poor situation it it meant that my kids and their contemporaries don't have to risk being made into refugees by climate change, or face a future of water/food/energy shortages, failed states and frustrated potential.

Re:Oceans 'soaking up more heat than estimated' by ljcn on Saturday November 03, 2018 @07:04AM (#18369640)
Sorry I meant richness of the local ecosystem. Big mammals in particular.
Re:Oceans 'soaking up more heat than estimated' by candiodari on Thursday November 01, 2018 @08:56AM (#18353410)
> To save the world we need: a substantial price on carbon,

No we don't. Global warming is a self-reinforcing effect. So there's no point to slowing down emissions. No point at all. Even if you get it to zero, the resulting concentrations will still accelerate into the right. Even if you get it negative at the same rate we're producing it today (which would eliminate all human co2 contributions EVER in ~60 years) would do nothing but delay.

So why bother ? This avenue is closed, and useless.

We glued a grenade to our hand, and pulled the pin. Messing around trying to insert the pin back in provides nothing but comic relief. We need to adapt. To limit the damage, and fix things.

As you say, only direct geoengineering can work. On the plus side: doesn't require global cooperation. On the downside: that'll make someone clearly directly responsible for the (MUCH worse) effects global cooling will have, especially locally ... so it's extremely incompatible with how current green parties think and "influence policy".

Whereas the current "complain and do nothing but token efforts" is very good at getting constant attention, votes and money. But only if the problem keeps getting worse.

So just like everyone they accuse, green and leftist parties themselves are dependent on global warming happening and getting worse. Maybe that, too, is a reason why we have nothing but token efforts. Also, they would have to admit that "mother nature"/gaia is definitely NOT going to save our ass, even if we stop polluting.

Additionally, Gaia, so to speak, has already decided to inflict global warming on us, as a punishment or just because, take your pick, effectively for what humanity did at the end of the 19th (not 20th) century. So we need to inflict further damage on the ecosystem artificially controlling the temperature to prevent worse. But that'll futher destroy habitats, and on a much larger scale than what we've seen so far.

Not eating meat, capturing co2, lab-grown meat, even nuclear power ... just can't work. Only geoengineering can work.

Re:Oceans 'soaking up more heat than estimated' by dmm on Thursday November 01, 2018 @10:01AM (#18353916)
If we ceased all carbon emissions today the earth would continue to warm for centuries, sure. But if we did that then it wouldn't the total temperature rise be lower, requiring less geoengineering? How is that pointless?
Re:Oceans 'soaking up more heat than estimated' by DennisP on Thursday November 01, 2018 @11:25AM (#18354809)
Pretty much every climate scientist disagrees with you. We can't avoid severe effects, but we can still choose between expensive horrible disasters, and the end of modern civilization. Lowering our carbon emissions by a large amount is the main way to do that.

Doing nothing but solar radiation management has serious downsides: it does nothing for ocean acidification, and if you ever stop pumping out that sulfur dioxide or whatever, all that pent-up warming hits you at once. I see it as a temporary emergency measure, to head off heat-driven feedback effects.

Re:Oceans 'soaking up more heat than estimated' by candiodari on Thursday November 01, 2018 @02:13PM (#18356778)
There are artificial ways to stop ocean acidification as well ... but yes, we'll have to manage a lot of things.
Re:Oceans 'soaking up more heat than estimated' by DoreenMichele on Thursday November 01, 2018 @02:18PM (#18356825)
So why bother ?

This right here sums up about 97% of the entire issue. People look at the scale of problem, figure they can't make "a real difference" and use that as justification for continuing on with business as usual. It boils down to "The pain and nuisance of me personally taking fewer airplane trips, walking more or eating less meat (or whatever) far outweighs in my mind the benefit to The World of me inconveniencing myself. So Why Bother?"

And, conveniently, it's an argument that frames itself in a way that is nigh impossible to argue with.

Re:Oceans 'soaking up more heat than estimated' by verelo on Thursday November 01, 2018 @09:14AM (#18353558)
I love the idea of it being a self regulating cost, but frankly this whole conversation is about the fact we as humans are not reacting. So I’m all for throwing a price on it to break the cycle of procrastination!

Taxes can always be repealed, but I’d like to see us start giving a shit before we assume this won’t work, because whatever we are doing now doesn’t work!

Re:Oceans 'soaking up more heat than estimated' by ljcn on Thursday November 01, 2018 @10:32AM (#18354204)
> So there's no point to slowing down emissions.

> We need to adapt. To limit the damage, and fix things.

The first contributes to the second.

Re:Oceans 'soaking up more heat than estimated' by candiodari on Friday November 02, 2018 @06:10AM (#18361850)
That's just it. It used to, but it doesn't. At this point global warming is self-reinforcing. So while it's correct what you say, the implied corollary is not true.

The implied corollary is of course that if we slow down emissions global warming will stop. And it won't. It will slow down, but not stop. Not even if we get net emissions to zero.

Re:Oceans 'soaking up more heat than estimated' by TomK32 on Thursday November 01, 2018 @08:20AM (#18353226)
> developing advanced nuclear power

Deploying renewable energy generators is just so much fast and more flexible, and demolition (either controlled or uncontrolled) isn't such a risk as with a nuclear power plant.

Stopping our existing coal power plants while cutting down on energy consumption; Sure, it's an educational problem but during WWII people collected scrap metal for the war effort.

Re:Oceans 'soaking up more heat than estimated' by DennisP on Thursday November 01, 2018 @11:34AM (#18354919)
The problem with renewables alone is storage. The big Tesla grid battery in Australia does 100MW and stores 129MWh. Its capital cost was $90 million: https://www.theguardian.com/technology/2018/sep/27/south-aus...

That's great as part of a diverse grid but some areas don't have hydro/geothermal, so if those places want to go entirely carbon-free without nuclear we need to rely entirely on wind/solar/battery. That means, at a minimum, we need to get through a windless night.

So let's say about 12 hours. For 12 GWh we'd need 12,000/129=93 Tesla-scale plants, costing $8.3 billion. That's just for minimum storage, not including the wind turbines and solar panels.

We have to take the current cost of wind/solar and add another 50% or so, since we need to generate enough to fill the storage, not just meet current needs during the day. Then we need to overbuild even more, because on a cloudy day we only get about half as much energy out of our solar panels. Another issue is the sheer amount of lithium and cobalt you'd need; we're pushing the limits already, and we'll need a lot more for electric cars.

At this point you're probably thinking long-distance transmission to collect wind power from a wide area, but that's also expensive. More importantly, it's politically difficult and time-consuming to get the land rights.

By comparison, construction cost for modern conventional nuclear plants is under $8 billion/GW: http://www.world-nuclear.org/information-library/economic-as...

Of course, there are emerging technologies to help with all of this. Wind, solar, and batteries are all getting cheaper, and batteries using other raw materials are being developed.

But if we're going to look to future technologies, let's do that with nuclear as well. Molten salt reactors look way cheaper than conventional reactors, and fast reactors can eat nuclear waste. At least half a dozen startup companies are working on molten salt reactors, several are working on fast reactors, and Russia has two commercial fast reactors on their grid right now.

Re:Oceans 'soaking up more heat than estimated' by ForHackernews on Thursday November 01, 2018 @07:25AM (#18352864)
This is the most accurate comment so far.

Also note that we need all of the above in place within the next 10-15 years.

Re:Oceans 'soaking up more heat than estimated' by te_chris on Thursday November 01, 2018 @07:33AM (#18352916)
I don't understand why govt's aren't tasking their militaries with using their considerable resources to find solutions to climate change - they have, at minimun the following skills: science, tech, manpower, organisational ability.
Re:Oceans 'soaking up more heat than estimated' by ForHackernews on Thursday November 01, 2018 @07:39AM (#18352969)
Because there's no political will and nobody cares.

https://www.vox.com/2016/10/4/13118594/2-degrees-no-more-fos...

Honestly, we're just going to keep sleepwalking into catastrophe.

Re:Oceans 'soaking up more heat than estimated' by cmrdporcupine on Thursday November 01, 2018 @08:04AM (#18353124)
What makes you think that the powers that be are sleepwalking? They know it's coming and they want to be out on top when it does.

Hence the anti-refugee, anti-immigrant talk -- might as well start early and get people in the mindset to deal harshly with mass migration caused by climate change.

Hence the continued military build-up and the consolidation of armed forces in hot-zones (multiple meanings to 'hot')

Hence the rise of protectionism (free trade won't mean much in a climate crisis world anyways)

Hence the rise of nationalism (what's "mine" is mine)

There are too many advantages to being the last to do anything, and it's too late to do anything without a major revolution or civil war. The whole world economy goes into a tailspin over a relatively minor increase in the barrel price of oil -- imagine what it will do if oil goes up by 1000%, which is what it would need to do to stop its rampant consumption...

I love my kids, but sometimes wish I hadn't had any.

Re:Oceans 'soaking up more heat than estimated' by ForHackernews on Thursday November 01, 2018 @08:19AM (#18353221)
Yeah, maybe. I don't buy it. As far as I can tell, there's not some big global conspiracy of "the powers that be" -- there's just a bunch of random stupid humans doing the best they can.

The problem of climate change is just too big and happening over too long a timescale for us to address. None of our personal or political systems are evolved to deal with it.

Re:Oceans 'soaking up more heat than estimated' by cmrdporcupine on Thursday November 01, 2018 @08:23AM (#18353243)
I didn't say it was a conspiracy. It's a net, systematic effect caused by individual decisions in their self-interest. The concentration of power is an aggregate effect of the method of economic production we have.

That said, don't kid yourself for a minute that the people with large amounts of capital don't meet and discuss these things amongst themselves. They have both public-facing institutions (political parties, etc.) and private ones for this purpose.

Re:Oceans 'soaking up more heat than estimated' by ForHackernews on Thursday November 01, 2018 @08:32AM (#18353287)
Ok, but so what?

BREAKING NEWS: Rich guys also hope their families survive the water wars.

Re:Oceans 'soaking up more heat than estimated' by cmrdporcupine on Thursday November 01, 2018 @08:39AM (#18353318)
The point is that 'rich guys' have the ability to make sure they survive 'the water wars' while you do not. And also it's in their interest to stay rich before then. And to stay rich, that means continuing to do what we're doing. Which results in the 'water wars'.

Not sure what/why we're arguing about here.

Re:Oceans 'soaking up more heat than estimated' by lucidguppy on Thursday November 01, 2018 @12:10PM (#18355405)
We need to start with a revenue neutral carbon tax.
Re:Oceans 'soaking up more heat than estimated' by skosch on Thursday November 01, 2018 @10:18PM (#18360207)
Yes – probably one of the best organizations to donate your time to: https://citizensclimatelobby.org/

Carbon pricing is what really is going to set things in motion on a large scale.