Cate Blanchett washes her hair of warming scare Cate Blanchett fronted a wildly deceptive ad telling the rest of us to say yes to a carbon tax to stop global warming, which we're told will cause huge rises in sea levels. And she announced she was making her own little sacrifices. In 2007 Blanchett claimed global warming was causing droughts so severe that she often skipped washing her hair: THE drought has hit so hard that even one of the world's most glamorous women is doing it tough, resorting to not washing her hair. I actually have little races with myself, thinking âOh no, I'm not washing my hair. I only need to have a two-minute shower,"" Blanchett revealed. Blanchett and Australian Conservation Foundation director Don Henry visited the [North Pine] dam â presently at just 16 per cent of capacity â to see the effects of the drought and to share her passionate views about climate change. Yet now, for all the talk of rising sea levels and having to cut our use of water and dirty power: Cate Blanchett and her Sydney Theatre Company artistic director husband, Andrew Upton, have secured a Hawkesbury River retreat with jacaranda vista... It comes with a spa, sauna, terraced gardens and a pontoon... When Blanchett acts like she talks I'll take more seriously her claims that global warming is a threat. The North Pine Dam's current level: 64.8 per cent full. Total SE Queensland dam supplies: 82.5 per cent full. One more dud prediction. Thanks to readers derFred, philj and others.