The founder of a Hong Kong non-profit, CarbonCare InnoLab, says it's encouraging that the notion of "climate justice" is on the agenda at the United Nations' COP27 climate conference being held in Egypt.

Chong Chan-yau says that developed nations have so far resisted calls to discuss paying poorer nations to help them cope with the impacts of global warming but that "loss and damage" is now part of the conversation at the event in Sharm El Sheikh.

"There is a recognition that marginalised groups suffer more from climate change despite contributing the least to it," he said. "In Hong Kong, for example, it affects people in partitioned flats who don't have air conditioning, or people who work outdoors. Climate injustice is a reality, so it's encouraging that loss and damage are key discussion points."

Chong said the group had sent 10 young people from Hong Kong to the event, where they will network and add their voices to calls for governments around the world to make good on their climate pledges.

"There's not enough commitment from around the world to deliver on keeping to a 1.5 degree temperature increase," he added. "We need the conference to succeed,"