शैडोइंग अभ्यास: Do we Need Nuclear Energy to Stop Climate Change? - वीडियो के साथ अंग्रेजी बोलना सीखें

Do we need nuclear energy to stop climate change?

More and more voices from science, environmental activists and the press have been saying so in recent years.

But this comes as a shock to those who are fighting against nuclear energy and the problems that come with it.

So, who's right?

Well, it's complicated.

To slow rapid climate change, the world needs to reduce greenhouse gas emissions to net zero.

In 2018, three -quarters of global emissions were released through energy production, namely by burning fossil fuels.

Energy is a broad term that describes all sorts of stuff, from moving things and people around, to putting things big and small together, or heating our homes.

Currently, 84 % of the world's primary energy comes from fossil fuels, 33 % from oil, 27 % from coal, and 24 % from gas.

Around 10 % of the global oil supply is just used to burn in boilers to make our homes cozy and warm.

Only about 16 % of global energy is from low emission sources, almost 7 % from hydroelectric, 5 % from solar, wind,

bioenergy, wave, tidal and geothermal combined, and about 4 % from nuclear.

So we pretty much rely on coal, oil and gas to keep our civilization going, which means it's actually very hard to transition away from them.

To have a chance of escaping fossil fuels without throwing humanity back into the Stone Age,

one of the most impactful things we can do is to electrify as many sectors as possible.

Electricity is the stuff that appears like magic when you plug something into a socket so you can watch YouTube.

Every industry that can switch from burning fossil fuels to electricity needs to do so, from electric cars to electric heaters.

Why do we need to bet so hard on electricity?

Because we can produce electricity with low -emission technologies like solar, wind or nuclear.

So electricity is a real lever for a radical transition.

But there are a few problems making this transition really hard.

First of all, in most places in the world, electricity is still generated mostly by burning fossil fuels.

And not only that, in the last 20 years, the world's electricity usage increased 73 % in absolute terms.

While we are installing renewables at record speeds, at the same time, the amount of fossil fuel we're burning for electricity still keeps rising year by year.

Renewables have so far not been able to catch up with the demand for new electricity, and so despite our progress,

emissions from electricity are still rising worldwide worldwide.

The other alternative to fossil fuels is nuclear, and even though it's not renewable, its greenhouse gas emissions are tiny compared to burning stuff.

But in the last 20 years, nuclear has basically stagnated.

Countries like China, India, and South Korea built new reactors, while Germany and Japan have been actively taking their nuclear plants offline.

Which seems a bit weird

if we look at the countries with the most low -carbon electricity in the world

that get most of their juice mainly from two sources nuclear or hydropower.

Take France and Sweden.

In France only around 10 % comes from fossil fuels

while 67 % comes from nuclear and 23 % from renewables primarily hydro.

In Sweden almost 30 % comes from nuclear power and about 45 % from hydro.

So we know that nuclear energy can work at scale.

On the technical side, because of the lack of investment and innovation in the last few decades,

the majority of the world's nuclear reactors are pretty old technology that's very costly to replace.

In most Western countries, building nuclear reactors has become very expensive for a variety of reasons, like a loss of know -how in constructing them,

policy changes and increased regulatory constraints so it can take a decade or longer just to finish a power plant.

In contrast, countries like South Korea, China, India, and Russia are able to build new nuclear reactors comparatively quickly and at a competitive cost.

Still, generally in the West, the current generation of nuclear power plants are more expensive to build and maintain than most fossil fuel alternatives.

There are also the concerns about nuclear waste and the fear of accidents, but we cover those in other videos in more detail.

We have designs for nuclear reactors that solve many of their problems, namely small reactors that take less time and money to get started.

There are also next generation technologies that can already turn radioactive waste into new fuel,

but so far these have not been deployed at a scale where they can have a significant impact on the nuclear sector.

Considering these uncertainties, some argue that nuclear power is a dangerous relic of the past

and that we should just let it go and focus on renewables.

But while renewables undoubtedly are the future of electricity,

they still have their own huge challenges to overcome before they can take over the vast majority of the electricity grid.

The main problem is reliability and consistency.

It's not always windy and the sun doesn't always shine especially in the mornings and evenings when humans need the most electricity.

The variations between seasons don't make this issue easier.

To make renewables reliable

and not risk blackouts we need massive storage capacities where we can save energy collected

when the sun or wind are at their peak and release it later when we actually need it.

Until this is possible other sources of electricity need to provide a controllable load

that creates the reliability of supply that our civilization needs to run properly.

Eventually, we will be able to do this with renewables, but we need a lot of batteries or storage power plants.

Right now, we simply don't have the tech and the capacities to make this transition fast enough to replace fossil fuels.

But even if we could, there's another aspect we have to take into account.

We're not just trying to kick fossil fuels out of electricity, we're trying to replace energy with electricity.

If we're going to electrify sectors that currently use fossil fuels,

like cars or heating, we will need significantly more electricity than we're currently using everywhere around the world.

And if the electricity needs of the world population continue to grow as they have over the last 20 years, we'll need even more.

It all comes down to one thing.

No energy source is perfect, all have their own unique problems.

Both renewables and nuclear energy require time, investment and technological innovation.

On their own, neither is ready to remove fossil fuels from our electricity grid, although activists on both sides claim that they are.

In the end, the question is how we want to deal with all these challenges.

Should we give up nuclear immediately and at least temporarily accept higher emissions?

Will we try to extend the life of current nuclear reactors and shut them down afterwards while solving the shortcomings of renewables?

Or will we invest in new nuclear technology to get new nuclear reactor types that are cheaper and safer?

Or will we maybe do both?

Opinion part starts here.

Considering the risks that climate change poses for the biosphere

and humanity any technology

that has a chance of contributing to a solution should be pursued that's just good risk management and strategy

if preventing rapid climate change as quickly as possible is our

goal it might be a good idea to see nuclear

and renewables not as opponents but as partners we know there's no time to waste

so we should keep all of our low emission players on the field as things are both nuclear

and renewables need innovation and investment but But if we don't know yet which technology will be ready how quickly, why not just invest in both and see what happens?

And on the topic of current capacities, if we take nuclear energy offline right now, then that missing capacity will be replaced,

at least partially, by fossil fuels.

Even if new nuclear power plants in the West are expensive, in the long run it may be cheaper to build them

as long as they prevent more fossil fuel capacity being added and paying for the consequences of rapid climate change.

So, do we need nuclear energy?

Well, it really depends how hard we choose to make things for ourselves.

And in a world that's already having a really hard time quitting fossil fuels, why should we make things harder than necessary?

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इस पाठ की शब्दावली और बोलने के सुझाव

इस वीडियो में शैडोइंग के लिए 91 वाक्य और 1396 शब्द हैं। बोला गया हिस्सा 9:02 लंबा है। वक्ता लगभग 155 शब्द प्रति मिनट की स्वाभाविक गति से बोलता है, जो रोज़मर्रा की बातचीत के करीब है। 84% शब्द अंग्रेज़ी के 3,000 सबसे आम शब्दों में से हैं; बाकी शब्द अभ्यास से पहले देख लेना अच्छा रहेगा।

इस वीडियो की मुख्य शब्दावली

वीडियो के 15 सीखने लायक शब्द, उच्चारण और अर्थ के साथ:

शब्द	उच्चारण	अर्थ
fossil संज्ञा	/ˈfɑsl̩/	जीवाश्म
emission संज्ञा	/ɪˈmɪʃ.ən/	उत्सर्जन
innovation संज्ञा	/ˌɪn.əˈveɪ.ʃən/	नवाचार
solve क्रिया	/sɒlv/	सुलझाना, हल करना
humanity संज्ञा	/hjuˈmænɪti/	मानवजाति, मानवता
grid संज्ञा	/ɡɹɪd/	झर्झर, जाली
activist संज्ञा	/ˈæk.tɪ.vɪst/	कार्यकर्ता
civilization संज्ञा	/ˌsɪv.ɪ.laɪˈzeɪ.ʃən/	सभ्यता, संस्कृति
greenhouse संज्ञा	/ˈɡɹːnˌ(h)aʊs/	ग्रीनहाउस, हरितगृह
topic संज्ञा	/ˈtɑpɪk/	प्रसंग, विषय
complicated विशेषण	/ˈkɑm.plɪˌkeɪ.tɪd/	जटिल, पेचीदा
shock संज्ञा	/ʃɔk/	झटका
compare क्रिया	/kəmˈpɛɚ/	तौलना
afterwards क्रिया विशेषण	/ˈæf.tɚ.wɚdz/	बाद में, पश्चात
aspect संज्ञा	/ˈæspɛkt/	पक्ष

इस वीडियो का व्याकरण

वक्ता जिन संरचनाओं का सबसे अधिक प्रयोग करता है, वीडियो के असली शब्दों के साथ:

संरचना	वीडियो में
Passive voice be + past participle — ज़ोर इस पर कि क्या होता है, न कि कौन करता है	were released · is still generated · have not been deployed
Present perfect have/has + past participle — बीता हुआ काम जिसका असर अभी भी है	have been · has become · have not been deployed
Relative clauses who / which + उपवाक्य — व्यक्ति या वस्तु के बारे में अतिरिक्त जानकारी	those who are · going, which means

ध्यान देने योग्य उच्चारण

वक्ता 10 बार संक्षिप्त रूपों का प्रयोग करता है, जैसे we're, don't, doesn't। इन्हें वैसे ही छोटा बोलें जैसा आप सुनते हैं।

“sh” और “zh” की ध्वनियाँ: emission /ɪˈmɪʃ.ən/, transition /tɹænˈzɪʃ.ən/, innovation /ˌɪn.əˈveɪ.ʃən/, civilization /ˌsɪv.ɪ.laɪˈzeɪ.ʃən/, contrast /kənˈt(ʃ)ɹæst/
लंबे शब्द — बलाघात सही रखें: electricity /ɪˌlɛkˈtɹɪsɪti/, innovation /ˌɪn.əˈveɪ.ʃən/, humanity /hjuˈmænɪti/, civilization /ˌsɪv.ɪ.laɪˈzeɪ.ʃən/, primarily /ˈpɹaɪ.mə.ɹə.li/

इस वीडियो से अभ्यास कैसे करें

पहले बिना बोले पूरा वीडियो एक बार सुनें और जो शब्द नहीं आते उन्हें लिख लें।
0.75× गति से शुरू करें, एक-एक वाक्य की शैडोइंग करें, और सहज लगने पर सामान्य गति पर लौटें।
अपनी आवाज़ रिकॉर्ड करें और मूल से तुलना करें, ख़ासकर fossil, emission, innovation जैसे शब्दों पर ध्यान दें।

शैडोइंग तकनीक क्या है?

शैडोइंग (Shadowing) एक विज्ञान-समर्थित भाषा सीखने की तकनीक है जो मूल रूप से पेशेवर दुभाषिया प्रशिक्षण के लिए विकसित की गई थी। विधि सरल लेकिन शक्तिशाली है: आप मूल अंग्रेज़ी ऑडियो सुनते हैं और तुरंत इसे ज़ोर से दोहराते हैं — जैसे वक्ता की छाया 1-2 सेकंड की देरी से। शोध से पता चलता है कि यह उच्चारण सटीकता, स्वर, लय, जुड़ी हुई ध्वनियाँ, सुनने की समझ और बोलने की प्रवाहशीलता में काफ़ी सुधार करता है।

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इस पाठ की शब्दावली और बोलने के सुझाव

इस वीडियो की मुख्य शब्दावली

इस वीडियो का व्याकरण

ध्यान देने योग्य उच्चारण

इस वीडियो से अभ्यास कैसे करें

शैडोइंग तकनीक क्या है?