Recent comments in /f/science

El_Grappadura t1_j7kms3i wrote

Reply to comment by tfks in Current climate policies lead the world to less than a 5 percent likelihood of phasing out coal by mid-century ,new study shows by 9273629397759992

All of your statements need sources.

Olkiluoto 3 was built by Framatom and Siemens, who consistently built new fission reactors in the last decades. You can't say there is no expertise.. Maybe some russian company can pump out reactors which then don't comply with EU or US safety regulations, so that doesn't help anyone..

Also the cost of energy storage is included, so your whole point about energy not being available is wrong.

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tfks t1_j7klmtk wrote

Reply to comment by El_Grappadura in Current climate policies lead the world to less than a 5 percent likelihood of phasing out coal by mid-century ,new study shows by 9273629397759992

Rosatom has been pumping out reactors, taking about six years each consistently for a couple of decades. It's not that nuclear reactors take that long to build. It's that our nuclear construction expertise in the West is trash because we've preferred to burn fossil fuels for the past 40 years.

When stating that nuclear costs more than renewables, you'll have to state what metric you're using. Most likely, you're using levelized cost of energy, which is a flawed metric for measuring the economics of power generation of renewables. For dispatchable sources, LCOE is fine. But renewables are not dispatchable (excluding hydro and geothermal, which are dispatchable), so LCOE is not an appropriate measure. You might ask why. Well, the reason is that it doesn't matter if the energy is cheap if it's being produced when you don't need it, which happens pretty frequently with renewables. To make this clear, if you lived in a place where it did not snow and someone came to you saying "hey, I'll clear snow from your property for $10 a year" you would be stupid to take that deal not because the price is high, but because you don't need that service. That company could advertise itself as being the lowest cost snow removal company in the world, and they would be right, but that isn't relevant to whether or not it makes sense to purchase the service. So sure, advocates of renewable energy can say that the cost of the energy they produce is very low, but the conversation doesn't end there. The analysis to determine how cost-effective renewable sources are depends heavily on the climate of a region and the existing grid infrastructure. For example, every degree of latitude you move from the equator reduces the value of solar.

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Widespreaddd t1_j7kejbg wrote

Reply to comment by AlphaSquad1 in In a study examining conversation as a vehicle for social influence, researchers found that changing the mind of someone who is dismissive of efforts to protect the planet could be accomplished by sharing a pro-sustainability point of view during a verbal or written exchange. by memorialmonorail

Yes, my city stopped free recycling. You can recycle some items, like glass, if you want to, but you now have to pay them to take it.

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OIlberger t1_j7kdo2q wrote

Reply to comment by eldedomedio in In a study examining conversation as a vehicle for social influence, researchers found that changing the mind of someone who is dismissive of efforts to protect the planet could be accomplished by sharing a pro-sustainability point of view during a verbal or written exchange. by memorialmonorail

It helps if one side of the argument wouldn’t rather cut their arm off rather than agree with a perceived liberal POV on literally any topic.

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autumnals5 t1_j7kd0jx wrote

Reply to In a study examining conversation as a vehicle for social influence, researchers found that changing the mind of someone who is dismissive of efforts to protect the planet could be accomplished by sharing a pro-sustainability point of view during a verbal or written exchange. by memorialmonorail

“One-hundred companies are responsible for more than 90 percent of all global plastic waste, according to new research from The Plastic Waste Makers index.”

I will leave this here. Sure we all need to be more mindful of the environment and do what we can but without corporations making the switch what we do won’t matter that much.

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SaltZookeepergame691 t1_j7kcgnv wrote

Reply to comment by SelarDorr in Analysis showed that 65.6% of women who took extra Vitamin D gave birth naturally. The study analysed results from the MAVIDOS trial which involved 965 women being randomly allocated an extra 1,000 International Units (IU) per day of vitamin D during their pregnancy or a placebo. by Wagamaga

This is a post hoc analysis. This was NOT a named secondary! It explicitly says so in the paper, and it’s why I explicitly said it was a post hoc analysis…

For your info, from the reg record:

>Primary outcome measure

>Neonatal whole body bone area, bone mineral content and bone mineral density assessed by dual energy x-ray absorptiometry (DXA) within 10 days of birth.

>Secondary outcome measures

>1. Neonatal and childhood anthropometry and body composition (weight, length and skinfold thickness measurements), assessed within 48 hours of birth

>2. Women's attitude to pregnancy vitamin D supplementation (qualitative study; assessed in main study only). Methodology and timepoints of assessment not yet defined as of 03/03/2008

>3. Childhood bone mass at 4 years

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hellhoundtheone t1_j7kajr1 wrote

Reply to comment by AlCzervick in In a study examining conversation as a vehicle for social influence, researchers found that changing the mind of someone who is dismissive of efforts to protect the planet could be accomplished by sharing a pro-sustainability point of view during a verbal or written exchange. by memorialmonorail

it is and of top of that a Plastik bottle can only be recycled once then its trash too

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