linked to Māori in Antarctica
An overseas research team has linked soot preserved in Antarctic ice to fires set in Aotearoa New Zealand, by Māori settlers, 700 years ago.
The researchers say the finding is a dramatic example of early humanity's environmental impact.
However, there has been some criticism here in New Zealand about the research.
Joseph McConnell is an environmental scientist at the Desert Research Institute in Reno, Nevada.
He spoke to Kim Hill.
Link to article and recording: Team finds 700-year-old soot linked to Māori in Antarctica | RNZ