The climate change wars heated up, last week, after opposition leader Peter Dutton announced that, if elected to government, he would dump the current emissions reduction target for 2030. Activists, and even a member of Dutton’s own party, recoiled. This move, they said, may breach our commitment to the Paris Agreement - the treaty committed to fighting global warming. Today, national climate and environment editor Nick O’Malley on what the Paris Agreement is all about. And why political infighting might damage not just our economy and our environment, but our ability to defend ourselves, too.Subscribe to The Age & SMH: https://subscribe.smh.com.au/See omnystudio.com/listener for privacy information.