The academic who blew the whistle on Australia's carbon credit scheme - sparking an independent review - has released new research  showing "damning results". Professor Andrew Macintosh says the research confirms the scheme isn't removing more carbon dioxide from the atmosphere.

Human-induced regeneration counts for almost a third of all carbon credit projects but Professor Macintosh says it's "failing", despite receiving hundreds of millions of dollars in credits.

Guest: Professor Andrew Macintosh, ANU