By Clare Nuttall in Glasgow The global population is projected to grow by more than 2bn people over the next few decades, peaking at approximately 10.3bn in the 2080s before declining to around 10.2bn by the end of the century, according to a new United Nations report. The World Population Prospects 2024 report, published by the UN Department of Economic and Social Affairs (DESA) on World Population Day, attributes the earlier-than-anticipated peak to lower fertility levels in some of the world’s largest countries, notably China. China’s population is expected to fall dramatically from 1.4bn i…