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[-] derf82@lemmy.world 74 points 1 year ago

Moving past tipping points. With permafrost melting, sea ice melting and not reforming, and fires in the boreal forest, the feedback loop is developing. We are going to blow past 2 degrees C way faster than anyone predicted.

[-] alvvayson@lemmy.world 49 points 1 year ago

Honestly, anyone paying attention saw this coming since 2010.

We had twenty years to avoid this: by massively switching to nuclear power in the 90s and 00s.

We missed that exit ramp. By 2010 it was clear that 2 degrees was unavoidable.

The choice now is, do we limit it to 2-3 degrees warming, or do we go straight to 4-5 degrees?

It will take at least two decades to transform our industrial world economy.

[-] tissek@ttrpg.network 19 points 1 year ago

4-5 degrees? You are optimistic. I bet I get to see 3 degrees in my lifetime as we will blast by each and every exit ramps. Not only that we'll also be drifting on the highway, because it looks cool.

[-] schroedingershat@lemmy.world 13 points 1 year ago

Switching >50% of the power to wind could have happened any time in the last 80 years for far less than any one of the various failed nuclear transitions.

Hell, the first commercial solar thermal installation was over a century ago and the first attempt to bring PV to market was george cove in 1906. One abandoned nuclear reactor worth of investment could have moved either down the economic learning curve to replace coal.

[-] NuclearArmWrestling@lemmy.world 1 points 1 year ago

I live in the SW US. We could probably provide power for most of the US with all the sun we get here and all the empty space without much of a hassle. The great thing is that it would likely be far less expensive than a good number of the alternatives.

[-] Kinglink@lemmy.world 12 points 1 year ago* (last edited 1 year ago)

"Nuclear power scares me"

Welcome to the result. It's sad, because nuclear power was the way, but instead we propegandized against it and continued to use it as a boogie man.

Ignoring the fact that coal and natural gas still hurt and kill people daily, ignoring there's over 400 nuclear power reactors that are still active, 93 in America... But no.. "Chernobyl" and the discussion ends.

Also Chernobyl was a 50 year old design, and happened 40 years ago, involved multiple human errors ... nah can't consider things have changed since then.

Now we have people using another nuclear plant in Ukraine as an example, and again the fear rises. They're trying to weaponize the plant, but somehow it's "Nuclear power" and not the fact some fuckheads are planning to destroy it in a destructive fashion that's the problem.

Somehow dams that would be devistating to destroy are given a pass, but hey Nuclear power, so scary.

[-] mierdabird@lemmy.dbzer0.com 10 points 1 year ago

Chernobyl was a 50 year old design, and happened 40 years ago, involved multiple human errors ... nah can't consider things have changed since then.

Things have indeed changed, now construction regulations are far tighter. This is good because the risk of a Chernobyl event is far lower, but at the price of extreme cost overruns and project delays

Ignoring the fact that coal and natural gas still hurt and kill people daily

So is it better to start a nuclear project and hope it can start reducing coal & NG emissions 10 years from now? Or is it better to add solar and wind capacity constantly and at a fraction of the price per MWh?

There was a time when nuclear was the right choice, but now it is just not cost effective nor can it be brought online fast enough to make a dent in our problems

Somehow Dams that would be devistating to destroy are given a pass, but hey Nuclear power, so scary.

I think you're forgetting that once the waters from a dam break dry up you can rebuild....a nuclear accident has the potential to poison the land for generations

[-] Kinglink@lemmy.world 9 points 1 year ago

There was a time when nuclear was the right choice, but now it is just not cost effective nor can it be brought online fast enough to make a dent in our problems

And in ten years.. it'll be too long to add nuclear ... And in ten years it'll.

Solar and wind works in some places, it doesn't work in all places, and the goal is to start moving away from Coal and Natural gas, it's a long process no matter which way you go, but starting to add more nuclear capactiy so in 10 years we can use it, isn't a bad thing.

"It's too late" has also been a refrain about Nuclear, but hey, in 2010 if people started to go nuclear, we'd have that capacity today, instead it was too late then, and we can only go solar and Wind... and we're still lacking.

[-] foo@programming.dev 5 points 1 year ago

Solar wind thermal energy works almost everywhere that humans thrive and it's cheap

[-] Arsenal4ever@lemmy.world 3 points 1 year ago

The comments are full of nuclear bros who think nuclear is the answer. Something about sun and wind not working everywhere.

[-] schroedingershat@lemmy.world -1 points 1 year ago

The best time to ignore the nuclear industry scammers and spend the money on renewables instead for 10x the return in clean energy was 1942.

The second best time is now.

[-] mierdabird@lemmy.dbzer0.com -1 points 1 year ago* (last edited 1 year ago)

starting to add more nuclear capactiy so in 10 years we can use it, isn't a bad thing.

Unfortunately this is only true if the money tied up building a reactor for 10 years doesn't take away from the budget for wind and solar projects. If it isn't then you're literally stealing clean energy from the present to hopefully get roughly 1/4 that rate of power production in a decade

[-] Kinglink@lemmy.world 2 points 1 year ago

The problem is that Solar and Wind doesn't work as a viable solution everywhere, so if the choice is between do nothing or start nuclear, you go nuclear.

Instead America has done neither and waited as have many countries.

If Solar and wind can work, and they are as fast as you say, of course you go wind and solar, the problem is that's not the case in many places.

[-] schroedingershat@lemmy.world 0 points 1 year ago

Where?

Show the data.

What place on earth is nuclear more viable than renewables?

No vague gesturing. Hard numbers.

[-] CantSt0pPoppin@lemmy.world 0 points 1 year ago

I am not here to argue with you or to persuade you to change your opinion. I am only here to provide you with some information and facts that you may find useful or interesting.

You are right that solar and wind energy may not be viable solutions everywhere, depending on the availability of resources, the cost of installation and maintenance, the environmental impacts, and the social acceptance.

However, there are also many challenges and risks associated with nuclear energy, such as the disposal of radioactive waste, the proliferation of nuclear weapons, the safety of nuclear power plants and fusion devices, and the potential for environmental contamination and human health hazards in case of accidents or mishandling.

According to the U.S. Energy Information Administration, renewable energy sources accounted for about 20% of U.S. electricity generation in 2020, while nuclear energy accounted for about 19%. Solar and wind energy grew at the fastest rate in U.S. history in 2020, while nuclear energy remained relatively stable³. Some studies have suggested that it is possible to supply about 75-80% of U.S. electricity needs with solar and wind energy, if the system were designed with excess capacity and storage⁴.

Nuclear energy is not a renewable source of energy, as uranium is a finite resource that will eventually run out. Moreover, nuclear energy is not carbon-free, as the process of mining, refining, and preparing uranium emits greenhouse gases. Nuclear waste is also a major environmental problem that has no permanent solution yet.

I hope this information helps you to understand some of the advantages and disadvantages of nuclear energy compared to solar and wind energy. If you have any questions or comments, please feel free to share them with me. 😊

(1) The Disadvantages of Nuclear Energy - Physics | ScienceBriefss.com. https://sciencebriefss.com/physics/the-disadvantages-of-nuclear-energy/.

(2) Advantages and Challenges of Nuclear Energy. https://www.energy.gov/ne/articles/advantages-and-challenges-nuclear-energy.

(3) Advantages Disadvantages of Nuclear Energy - NRC. https://www.nrc.gov/docs/ML0813/ML081350295.pdf.

(4) Various Disadvantages of Nuclear Energy. https://www.conserve-energy-future.com/Disadvantages_NuclearEnergy.php.

(5) U.S. Energy Information Administration - EIA - Independent Statistics .... https://www.eia.gov/todayinenergy/detail.php?id=48896.

(6) Study: wind and solar can power most of the United States. https://www.theguardian.com/environment/climate-consensus-97-per-cent/2018/mar/26/study-wind-and-solar-can-power-most-of-the-united-states.

(7) Pros And Cons of Nuclear Energy | EnergySage. https://www.energysage.com/about-clean-energy/nuclear-energy/pros-and-cons-nuclear-energy/.

(8) Nuclear energy: what it is and its advantages and disadvantages. https://www.endesa.com/en/the-e-face/power-plants/nuclear-power.

(9) Renewable Energy | Department of Energy. https://www.energy.gov/eere/renewable-energy. (10) U.S. renewable energy use nearly quadrupled in past decade, report .... https://www.washingtonpost.com/climate-solutions/2021/11/09/renewable-energy-solar-wind-biden/.

(11) Wind and solar power producing record amount of U.S. electricity. https://www.usatoday.com/story/tech/science/2022/03/03/wind-and-solar-power-producing-record-amount-u-s-electricity/9353259002/.

[-] matlag@sh.itjust.works 3 points 1 year ago

So is it better to start a nuclear project and hope it can start reducing coal & NG emissions 10 years from now? Or is it better to add solar and wind capacity constantly and at a fraction of the price per MWh?

It's better to do both!!

Nuclear is not more expensive than solar and wind. And today's paradox is solar and wind are cheap because oil is cheap...

Besides, comparing the 2 is totally misleading. One is a controllable source of electricity, the other is by nature an unstable source, therefore you need a backup source. Most of the time, that backup is a gas plant (more fossil fuel...), and some other time it's mega-batteries projects that need tons of lithium... that we also wanted for our phones, cars, trucks etc. Right now, every sector is accounting lithium resources as if they were the only sector that will use it...

And then you have Germany, that shut down all its nuclear reactor, in favor of burning coal, with a "plan" to replace the coal with gas, but "one day", they'll replace that gas with "clean hydrogen" and suddenly have clean energy.

There was a time when nuclear was the right choice, but now it is just not cost effective nor can it be brought online fast enough to make a dent in our problems

So we'll have very very exactly the same conversation 10 years from now, when we'll be 100% renewable but we'll have very frequent power outages. People will say "we don't have time to build nuclear power plan, we need to do «clean gas/hydrogen/other wishful thing to burn»". And at that time, someone will mention that we will never produce enough of these clean fuel but ... How many times do we want to shoot ourselves in the foot??

I think you’re forgetting that once the waters from a dam break dry up you can rebuild…a nuclear accident has the potential to poison the land for generations

In the years to come, we're going to lose much more land just because it won't be suitable for human survival, and that will be on a longer scale than a nuclear disaster. Eliminating fossil fuel should be the sole absolute priority, and nuclear is one tool to achieve it.

[-] alvvayson@lemmy.world 1 points 1 year ago

It's people like you who present a false dichotomy that are the really evil people in the world today.

We can do solar, wind and nuclear. One does not preclude the other, contrary to your false dichotomy.

In fact, we must build out a minimum level of nuclear - it is the only mandatory technology required to stop climate change, because it works 24/7.

We can add as much solar and wind to the system as we would like, as long as the grid can handle it.

Grids with a lot of hydro will not require much nuclear, e.g. Iceland can do entirely without it and Sweden only needs a small amount. Grids with little hydro will need a lot of nuclear, like France.

This was true in 1990. It is still true today and it will still be true in 2050.

[-] mierdabird@lemmy.dbzer0.com 3 points 1 year ago

Budgets are a real thing. If you tie up $28.5 billion constructing say, the Vogtle #3 and #4 reactors, you are taking away significant amounts of money that could have already produced working wind and solar installations that would produce far more power. Stating that reality doesn't make me "evil," get a grip.

Additionally, with upgrades in high voltage transmission lines and grid-level storage systems the need for nuclear or fossil fuel baseload in the future is going to be far less than you expect

[-] alvvayson@lemmy.world 1 points 1 year ago

Obviously, regulations must be changed to make nuclear affordable.

But yes, misguided people like you and those who opposed nuclear in the 90s are causing a mass extinction even that is gearing up to become the biggest in the history of the planet.

If that isn't evil, then I don't know what the term evil means anymore.

[-] AllonzeeLV@lemmy.world 7 points 1 year ago* (last edited 1 year ago)

The answer has been clear. The wealthy that cause this will continue to rape the planet for short term profit to feed their insatiable greed machine, the peasants who will suffer the most who could destroy the global oligarch class in a day will continue to labor for them in exchange for minimal subsistence until we die of climate change induced natural disasters, heat stroke, or starvation, and the global oligarchs will flee to the luxury bunker complexes they've been building to continue to live like modern Pharoahs, protected from the destruction they wrought.

Humanity chose greed and greed worship, because humans would rather daydream about becoming the greedy fuckers and living in the decadence and gluttony of their masters, than of breaking the wheel, rejecting the owners and stripping them of their wealth/power, and working together sustainably for the future of the species.

A great many of us peasants actually resent our tax dollars going to the underpaid teachers that try to foster society's future in the face of apathy and greed. I think you'd have to be blind to have any hope for humanity getting wise without the painful, clearly needed education of civilization's collapse. In an age where humanity's technology can literally destroy the world, we need to learn the hard way that actions and inaction have consequences for the species.

We can't learn that until we're hungry and can no longer delude ourselves into believing everything is fine by staring into a screen.

[-] c0mbatbag3l@lemmy.world 3 points 1 year ago

It would take that long for developed nations, there are countries that are still in their industrial revolution and that's not even counting the ones that actively oppose this kind of thing like Russia and China.

[-] soEZ@lemmy.world 3 points 1 year ago

The question on my mind is at what temp will global economy and our current civilization start to implode, as at that point we will probably stop emmiting as people, cities and possibly states literally die off....and than will probably be the new norm...

[-] matlag@sh.itjust.works 5 points 1 year ago

Looks like it's happening already. Natural disasters are on the rise, costing billions, insurance companies start bailing out of some area. I was also wondering if international help would come back every year to address a fraction of the wildfire in Canada, Spain, Italy, Greece, and soon pretty much everywhere.

Pretty sure the cost of the disaster is soon going to be unbearable and we'll start abandoning places and infrastructures instead of rebuilding (not officially, of course, we'll just "push back until conditions allow to rebuild" and forget about it as more disasters will occur).

It will be a slow death, though.

[-] derf82@lemmy.world 2 points 1 year ago

Sadly the inflation of the 70s followed by high interest rates froze nuclear plant building, and when it could have picked back up, Chernobyl put a final mail in the coffin.

Honestly I think the only thing that will stop it is mass death and destruction of the industrial economy.

Right now my biggest hope is a volcanic winter to give us a little reprieve.

[-] Hamartiogonic@sopuli.xyz 1 points 1 year ago

We’re going to need to make all the changes now. Energy production, energy usage, energy storage, transportation, manufacturing, carbon capture and so on. We’re going to need to do all of it, and we’re still in big trouble. My guess is that within the next 100 years the human population might take a dive because of climate change.

[-] Arsenal4ever@lemmy.world 12 points 1 year ago

I think a few scientists at Exxon Mobile predicted this in the 70's in their worst-case scenario reports.

this post was submitted on 24 Jul 2023
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