China will be the lone major economy to grow this year, while developed economies will commence a slow recovery in 2021 without any likelihood of returning to pre-pandemic conditions before 2023, Anglo-Australian mining giant BHP said on Tuesday.The diversified miner’s forecast, which was delivered during its full-year earnings report, indicates it thinks China is likely to shoulder the bulk of global growth in the next several years.“While the outlook for 2021 remains uncertain, within the…