As the east of the country shivers through a severe cold snap and gas prices spike, manufacturers warn they'll have to buy gas from overseas if supply doesn't improve.

Tony Wood from the Grattan Institute warns that gas supply issues are "getting more serious every year". He told RN Breakfast governments have spent too long it doesn't exist, and while he doesn't believe there's a risk people will run out of gas in their homes, the things that can be done to manage this "aren't pretty"

• Guest: Tony Wood, Director of the Energy and Climate Change Program at the Grattan Institute