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Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

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81–90 of 140 posts

Re: Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

#81

This kind of talk frightens me. Not because I don't think its what we need to do, but because then US will find an excuse to invade or interfere.

That's not really relevant. Even if you look at countries like Norway that have gone all in on EVs and decarbonizing rapidly, they still export oil faster than ever. So long as no one interrupts the global trade of fossil fuels, they don't care.

Re: Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

#82

Earlier quoted context omitted.

It is beyond shameful how Westerners misallocate the blame for pollution, using misleading statistics. India has ~17% of the world's population. That it only produces 7% of global emissions means it is contributing far, far, far less than whatever country you possibly come from in relative terms, so at that point you are besmirching it solely for the crime of having a larger population than your country. China, while…

Climate change doesn't divvy impact based on per capita usage. And large countries and blocs like the US, China, EU, India, etc would survive in a world with significant climate crises. So the incentive to change doesn't exist. And this is why the world will burn.

The Chinese government invested ~$1 trillion in clean energy in 2025, while the Chinese economy had a further ~$2 trillion in growth surrounding EVs, batteries, and solar. You talk about "no incentive to change", but things are actively changing. What more would you like China to do, in concrete terms? Stop manufacturing for the West, even though that will, as aforementioned, likely result in a net increase in emissions when Western countries resume their substantially worse per-capita manufacturing for themselves? Or perhaps you would like China to cull its population by half for you? I'm interested in hearing your proposal.

Re: Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

#83

Earlier quoted context omitted.

Even artificially limiting their availability causing prices to shoot up does not quench the thirst. I am always confused why the conversation seems to be about switching the toggle switch from fossil fuels only to renewables only. It's obvious the best way is more of potentiometer where you slowly change from one by adding renewables to the point of being able to reduce the reliance on fossil fuels. We're seeing it…

To "simply run out of fossil fuels" is like that potentiometer you mention, it isn't like you run out all at once but you run out of the cheap ones first and it gets more expensive. I remember reading https://www.amazon.com/Hubberts-Peak-Impending-Shortage-Revi... in the early 2000s which was about the coming peak of conventional oil production and it turned out to be wrong in the sense that we knew in the 1970s that…

We're not going to run out of fossil fuels. We are going to start running out of habitable biosphere because of climate degradation.

It's only a matter of time - likely a few years - before there's a significant wet-bulb heat catastrophe that kills a huge number of people.

For example.

Re: Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

#84
post #52

Earlier quoted context omitted.

There is no progress in CO2 reduction, we are still emiting more CO2 each year. " Global CO2 emissions from fossil fuel combustion and industrial processes increased by +0.7% within 2025." https://www.nature.com/articles/s43017-026-00780-4

But the growth of CO2 emissions is slowing, even though the global economy is growing and many more countries are industrialising and becoming wealthier (both proxies of CO2 emissions). So we're working on it. Not as fast as we need, but progress is being made.

> So we're working on it. Not as fast as we need, but progress is being made

It's too little too late.

India's CO2 emissions growth rate is around 4% [0], and India's economy is expected to grow at around 6-7% a year for at least the next decade. This means India's contribution alone will grow massively.

And what about other large countries like Indonesia, Vietnam, Nigeria, etc who are also seeing massive expansions.

Edit: can't reply

The Indian government's "electro-state" transition is predicated on coal expansion [1] - yes at a rate slower than before, but still at a rate that is a net negative for the environment.

This is also why India backed out of hosting COP33 in 2028 [2] - it would have brought this inconvenient truth to the forefront [3]

[0] - https://www.worldometers.info/co2-emissions/co2-emissions-by...

[1] - https://www.bloomberg.com/news/articles/2025-12-05/india-mul...

[2] - https://www.reuters.com/sustainability/cop/india-withdraws-b...

[3] - https://www.dw.com/en/why-india-walked-away-from-its-bid-to-...

Re: Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

#85
post #69

Earlier quoted context omitted.

Many people were saying that things were not as dire as they claimed. I’m glad they revised but you had silly people gluing themselves to thoroughfares (cars stuck in traffic waste more energy) and vandalizing what some people consider precious art and or national patrimony in the name of climate change thinking that those most dire predictions were indeed correct and we were all headed to hell in a hand basket.

So we are no longer worried about catastrophic or runaway climate change based on these revisions?

That’s tough to say. Weather systems are difficult to model. We have minimal understanding of the causes or inputs that control the very long climate cycles. Like we know that some day thousands of years from now we’ll have another unstoppable glacial period. We’ll also have a period free of polar ice. Those are cyclical and independent of CO2. We cannot stop either. We live in a very precious time.

I also think we should limit or be judicious as much as we can about what we pump into the atmosphere (or oceans or ground)

Re: Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

#86
post #3

We‘ve had talks about this topic decades before I was born, but progress is a bit underwhelming.

Progress has been incredibly rapid. Solar power in particular has gotten exponentially cheaper and more widely deployed. We are in an incredibly deep hole and are aiming at a rapidly moving target (energy demand is growing rapidly due to AI) but we've already hit our first inflection point in terms of renewables making up almost of our added capacity and it's within reach for fossil fuel usage to peak and start falling. Of course, that's still only early milestones since we will continue to add GHGs even as the pace slows. But right now it actually really seems like we have a grip on the problem and are moving in the right direction. It's really not the time to despair, but to double down.

https://ember-energy.org/latest-updates/solar-surge-halts-fo...

Re: Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

#88

Earlier quoted context omitted.

> Ethanol is quite a useful thing to have though, as a multi-season stable store of energy. Am I missing something? Ethanol is hydrophilic and hygroscopic. In concentrations used as a fuel (e.g., E85), it acts like a desiccant and spoils quickly. In a closed system this ends up with phase separation and the freed water causes engine corrosion. I'm not sure we want people running a still or molecular sieve in their ho…

Ethanol doesn't "spoil". It is a very stable molecule and miscible with water. The main issue is that it has a strong affinity for water so it needs to be stored in containers that are sealed from the environment. The same issue exists with the ubiquitous ethanol/gasoline blends.

The cheap thin-walled gas containers you find in the auto parts store or on Amazon sell a heck of a lot better than the good stuff.

This just doesn't meet up with the day to day reality of your average consumer.

Even your gas station underground tanks aren't airtight. The problem is that the air around us has tons of water vapor in it.

Re: Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

#89
post #57
post #32

Interesting that Colombia is currently powering more than 70% of their electrical consumption on hydropower. They currently have about 65 TWh of hydropower capacity; the total feasible generation potential is around 200 TWh. Makes then an interesting country to host such talks.

Good for them, but for most of the world there are no good hydropower locations left. And even when they exist building them is a local ecological disaster.

Practically everything we do is a local ecological disaster.

Pumped storage hydro electricity is one of our least ecologically devastating options and we are not even remotely close to exhausting locations we can put them.

https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricit...

Re: Colombia hosts talks on exiting fossil fuels as global energy crisis deepens

#90
post #15

> “The mere fact that the conference is happening is already a success,” said Claudio Angelo, senior policy adviser at Brazil’s Climate Observatory, a network of environmental, civil society and academic groups The bar has been set so low that talking about it is seen as success now. Sometimes I think the only way we'll really make meaningful progress is if we simply run out of fossil fuels. Unfortunately, we're just…

Brazil has had a pretty active program of converting cane sugar to ethanol for a while now. https://en.wikipedia.org/wiki/Ethanol_fuel_in_Brazil Sugar cane doesn't require replanting every year either, like corn does. Plants are actually not a good converter of solar energy to chemical energy though. They capture a few percent of it. Solar cells are able to capture about 10 times that, a much smaller footprint.

What is the conversion efficiency for electricity + C02 + H20 -> ethanol/hydrocarbons?

Because that is the overall path (for long-term storable chemical energy, i.e. usable for transport or seasonal energy storage in countries where solar is highly seasonal).

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