More than 8 million tonnes of plastic end up in the ocean each year. By the middle of the century, there will be more plastic in the sea than fish. The plastic trash of modern life – bottles, bags, packaging, and more – is broken down over many decades into tiny fragments that closely resemble the natural food of birds, fish and turtles.　Sea creatures are starving to death because their stomachs are so full of plastic.　Could we also be at risk? Scientists are now finding alarming evidence that plastic is in our seafood. And with it come toxic chemicals.

承接上集，本集继续探讨Facebook为世界带来了什么负面影响。有舆论认为Facebook影响了2016年美国总统选举的结果，他们批评Facebook未有履行编辑的责任，核实资讯的真伪。究竟Facebook有没有足够的能力打击数量庞大的失实资讯？Facebook亦被揭发泄漏数以千万计的用户资料作政治用途，事件引起国际关注。Facebook有何良策应对？对Facebook作出监管是否刻不容缓？

The Facebook Dilemma (part 2) explores Facebook’s response to charges of promoting “fake news” and disrupting American politics. This hour show the company’s role sowing division worldwide and the challenges facing the powerful social media platform. The documentary traces how the company failed to respond effectively to warnings from both inside and outside Facebook about everything from potential privacy violations, to “fake news,” to fomenting division and violence across the globe.

Facebook的困局 (上集) 

社交媒体Facebook成立近14年，用户数量超过20亿，成为最多人使用的社交平台。但随着用户不断增多，影响力亦越来越大。2011年「阿拉伯之春」革命浪潮席卷埃及，外界形容这次革命为「Facebook革命」，反政府团体透过Facebook号召民众，成功推翻极权政府。但亦有组织被指利用Facebook平台发布假消息，散播仇恨情绪，煽动民众作出激烈行为，从而分化社会。另外，舆论亦指Facebook收集大量用户的个人资料，不但未有妥善处理，更涉嫌用以图利。面对种种质疑，创办人朱克伯格如何拆解？

The promise of Facebook was to create a more open and connected world. But from the company’s failure to protect millions of users’ data, to the proliferation of “fake news” and disinformation in the U.S. and across the world, mounting crises have raised the question: How has Facebook’s historic success as a social network brought about real-world harm? The documentary shows a dozen of original interviews and rare footage, investigates a series of warnings to Facebook as the company grew from Mark Zuckerberg’s Harvard dorm room to a global empire.

Concentrating vitamins and minerals, rich in unsaturated fatty acids and in potassium, full of antioxidants: the avocado is a fruit of thousand virtues. Formerly considered as an exotic fruit eaten at special events, the avocado is now a leading　product of contemporary cuisine and available all year long. But the environmental– massive deforestation, overconsumption of water – and human effects coming from its overproduction are more and more worrying. Will the avocado be the unfortunate victim of its own success?

犀牛被列为濒危物种，多年来，猎杀犀牛的情况从未间断，而且过程相当残忍。去年，中国放宽犀牛角买卖禁令，进一步令情况恶化。犀牛角在亚洲尤其受欢迎，有人将犀牛角制作成首饰，亦有人认为进食犀牛角可以医治癌症。制作团队独家采访前线保护犀牛的巡警，又假扮买家到东南亚购买犀牛角制成品，了解非法贩卖犀牛角的运作情况。

In South Africa, poachers kill three rhinos every day. Fueled by the demand for rhino horn in Southeast Asia, where it’s widely believed to have medicinal powers, poaching could see South Africa’s rhino population disappear in just a decade. With exclusive access to the rangers on the front line in South Africa’s national parks and with extraordinary undercover footage showing how the horn is processed and packaged in Asia, Stroop presents a never-before-seen panorama of the international rhino poaching crisis.

尼日利亚是非州最大能源供应国，但过半尼日利亚人没有电力供应。当地政府一直缺乏有效措施，提高电力输出。激进组织通过摧毁天燃气管和电力设施表达他们的不满；另一方面，市民就冒着生命危险偷电，而电力公司职员上门收取电费时，又往往遇上居民暴力对待。缺电已成为该国各种问题的根源。

危险的连线

每年全球有800万至1000万吨塑胶垃圾被倒入大海，这些塑胶会被分解成微塑胶，黏附在海洋生物上。专家指，我们每吃一客青口，便同时吞进900粒微塑胶。塑胶垃圾不但影响人体健康，更可能引发海洋生态灾难。日常生活，我们似乎离不开塑胶，这种廉价、方便的物料是否就无可替代?改用瓦通纸、树叶又如何?另外，有生物学家正研究用昆虫消灭塑胶。是否可行?

In the year 2050 there will probably be about 10 billion people on earth. But already one billion people are suffering from hunger. Can we feed 10 billion people at all, or are we threatened by wars over food? Our meat consumption has quadrupled in the last 50 years. But it is animal husbandry that poses a threat to food security. Because in order to get a kilo of meat, the animal needs an X-fold of feed, which in turn is missing in the human food chain. How can we prevent future food shortages? Will we only get enough food in the future thanks to insects, algae and astronaut food?