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The Albanese government has approved an extension to 2070 of one of the world’s biggest gas export projects , saying it has agreed on conditions to protect more than 1 million pieces of ancient world heritage-listed Indigenous rock art that sit nearby.

The extension allows Woodside to keep operating its Karratha plant that processes and liquefies gas for export beyond 2030 and to 2070.

The federal environment minister, Murray Watt, said he had imposed 48 conditions on Woodside that related to monitoring and restricting industrial air emissions, including nitrous oxide, that could damage the rock art.

The Karratha plant neighbours the Murujuga Indigenous rock art complex – a landscape of petroglyphs dating back 50,000 years, including the oldest

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