We then looked at the world's longest flight that made its record-breaking debut last month. Experts say China Eastern's 29-hour journey from Shanghai to Buenos Aires has set the standard for new, ultra-long-haul journeys.

And we heard from a weather expert about the current cold snap. It comes as the Observatory issued the frost warning for the first time this winter.

9:05am-9:30am: South Korean President Lee Jae-myung's China visit

Speakers:

David Tizzard, Host of the Korea Deconstructed Podcast and Assistant Professor in Korean Studies at Seoul Women's University

Edmund Cheng, Professor at the Department of Public and International Affairs, City University of Hong Kong

9:32am-9:47am: World's longest flight

Speaker: Brendan Sobie, Aviation Analyst and Consultant, Sobie Aviation

9:47am-10:00am: Cold snap

Speaker: Martin Williams, Hong Kong-based writer, conservationist (PhD) and owner of DocMartin Williams, which provides wildlife tours and documents changes in weather pattern