Clive Spash

Back in 2006 it was revealed that scientists at the CSIRO had been forbidden from commenting on some impacts of climate change: JANINE COHEN: Kevin Hennessy is the coordinator of the CSIRO's Climate Impact Group. One of his jobs is to talk about the potential impacts of climate change. But there are some likely impacts of climate change that are clearly a no-go zone. Some scientists believe that there'll be more environmental refugees. Is that a possibility? KEVIN HENNESSY, CSIRO IMPACT GROUP: I can't really comment on that. JANINE COHEN: Why can't you comment on that? KEVIN HENNESSY, CSIRO…