Indigenous groups rally for environment ahead of G20 summit

Indigenous groups angry about mining-related environmental damage have marched through Brisbane as the city gears up for the G20 leaders summit.

More than 100 protesters, some draped in the Aboriginal flag, marched from Roma Street to South Brisbane's Musgrave Park today.

The peaceful march is part of a series of rallies planned by Brisbane Aboriginal Sovereign Embassy and Brisbane Blacks groups as world leaders begin to arrive in the city for the G20 gathering of world leaders.

Rally organiser Debbie Jones said today's protest, dubbed "Our Land, Our Water, Our Future," was about environmental destruction, including the controversial process of fracking to extract coal seam gas.

"We are custodians of this land but we can't perform those duties because the government and the corporations are raping our land for money," she said.

"The biggest issues that are breaking our hearts are mining, particularly coal seam gas mining, the mining industry's impact on the Great Barrier Reef and uranium mining."

Indigenous protesters will hold another rally on Friday about deaths in custody.

Yesterday, a large number of protesters rallied against the disproportionate number of Aboriginal children in out-of-home care in Australia.