On this week's Earth Matters we take you to the opening plenary of the Coalition for Community Energy congress, where Aboriginal elders and activists from around the country and around the world talk about meeting their communities' energy needs while looking after country.Guests:Gomeroi and Euahlayi man Michael Anderson from the Sovereign UnionKado Muir from Ngalia country and the Ngalia Heritage Research CouncilWongatha Wonganarra Elder Pastor Geoffrey Stokes