00:00 As the world's population grows, so does the need for power. Nuclear energy provides
00:06 10% of the world's electricity. But still some 733 million people in rural areas are
00:13 going without. To meet demand, there's been a push for more nuclear power plants. Nuclear
00:20 is reliable, durable and cost-effective. Plus, the greenhouse gas emissions are low. In China,
00:28 the Zhangzhou nuclear plant in Fujian province is in its second phase of construction, on
00:33 track to power millions of homes. But nuclear energy of course has its downsides. Accidents
00:40 like Chernobyl and Fukushima highlight the consequences when things go wrong. And disposing
00:46 of radioactive waste remains a massive challenge. That's why scientists are excited about nuclear
00:54 fusion. It's been hailed as the holy grail of clean energy for its potential to produce
00:59 lots of it without requiring any fossil fuels or leaving behind any hazardous waste. The
01:07 process mimics what powers the sun. It's been really hard to harness nuclear fusion energy,
01:13 but now scientists are using artificial intelligence to help. This year, UK-based Jet Laboratory
01:20 set a new world record, producing 69 megajoules of energy over five seconds. That's only enough
01:27 to heat around five hot baths. But scale it up and it could be the world's answer to limitless
01:34 clean power. So what is the role of nuclear in powering our future? And how green will
01:42 it really be?
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