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There has been a whirlwind of speculation about whether the ‘teal’ independents could come together to form a new political party. According to independent MP Zali Steggall, the time is ripe for a strong push from the progressive side of politics, as new polling predicts One Nation could overtake the Coalition as the leading opposition party. Independent senator David Pocock says he is open to the idea but that it is not without risks. He speaks to Reged Ahmad

Nour Haydar speaks with Christopher Knaus about the BHP files – the cache of internal documents leaked to the Guardian and the ABC’s Four Corners – which show that the world’s biggest miner has war-gamed ways to massively delay decarbonisation

Braided rivers are a stunning and rare global phenomenon – waterways that change direction and size, weaving multiple dynamic patterns influenced by rain and glacial shifts.Reged Ahmad speaks to New Zealand correspondent Eva Corlett about how the waterways are now under threat as communities around them have sought to tame and control their flow, leaving Māori tribes to watch the ecological impact with horror. You can support the Guardian at theguardian.com/fullstorysupport

After the death of the Warlpiri girl Kumanjayi Little Baby, the Northern Territory government announced a sweeping review of its child protection system. The terms of the inquiry, however, have been heavily criticised by First Nations and justice organisations. Prof Marcia Langton reads a piece she co-authored with Prof Fiona Stanley in which they argue that authorities are repeating mistakes of the past and failing Aboriginal children Warning: This episode contains references to Indigenous Australians who have died

In his biggest address so far, shadow treasurer Tim Wilson described the federal budget as an ‘economic earthquake’ at the National Press Club. He speaks to political editor Tom McIlroy about Paul Keating’s criticism of the Coalition’s response to Labor’s tax reforms and defends Angus Taylor’s controversial migration policy – which links housing completion to immigration and restricts access to welfare support