Since China imposed a new national security law on Hong Kong in the middle of last year, the situation for pro-democracy protesters has become much more dangerous. Even those who weren’t prominent leaders of the protests now live under the threat of prosecution. As Sui Ting Kong of Durham University told us, many people don’t know if they “have already crossed a red line”.

She spoke to us for the latest episode of our podcast The Conversation Weekly, which focuses on the tough choices now facing Hong Kongers about whether to leave – and where to go. While the UK opened up a new visa route for the estimated 5.4m people who hold British National Overseas status, it’s not clear how many will decide to come. Taiwan is also an attractive – and closer – migration destination. Listen here or wherever you get your podcasts.

Elsewhere, researchers explain how they discovered your resilience to cold can depend on your genes. And why Apple’s new set of emojis are a generational battleground.

Plus, if you have children with burning questions about the solar system, send them in to be answered by academics at our next Curious Kids Live event happening next Thursday March 4.

Gemma Ware

Editor and Co-Host, The Conversation Weekly Podcast

A man is arrested during a protest against Hong Kong’s National Security Law in July 2020. Miguel Candela/EPA

Leaving Hong Kong after China’s clampdown: where are people thinking of going and why? – The Conversation Weekly podcast

Gemma Ware, The Conversation; Daniel Merino, The Conversation

Plus new research finds a way to speed up the search for dark matter. Listen to episode 4 of The Conversation Weekly.

People with this gene variant shivered less and had a higher core body temperature when exposed to cold water. Dudarev Mikhail/ Shutterstock

Your genetics influence how resilient you are to cold temperatures – new research

Victoria Wyckelsma, Karolinska Institutet; Peter John Houweling, Murdoch Children's Research Institute

Around 1.5 billion people worldwide have this common genetic variant.

Jeremy Burge/Emojipedia

Apple’s new emojis are more ammunition for the online generation wars

Mark Brill, Birmingham City University

Millennials' favourite emoji is the latest casualty of gen z's emoji snobbery.

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