Earth at risk of becoming 'hothouse' if tipping point reached, report warns

Earth at risk of becoming 'hothouse' if tipping point reached, report warns  CNN Earth risks tipping into 'hothouse' state: study  Phys.Org World at risk of heading toward irreversible 'hothouse' state  Business Insider Repeat after me: carbon dioxide is good for us  The AustralianFull coverage

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