The upward trend threatens to leave even more people in developing countries further behind.People gather on Juhu beach on the Arabian Sea coast in Mumbai, India, on November 13, 2022. [Rafiq Maqbool/AP Photo]Published On 15 Nov 2022The United Nations says the world’s population is projected to reach the eight billion mark on Tuesday.The projection came in a UN report released in July, which said much of the growth expected between now and 2050 is coming from just eight countries.Half of those are in sub-Saharan Africa: Nigeria, the Democratic Republic of the Congo, Ethiopia and Tanzania. The UN said populations in that region are growing at 2.5 percent, more than three times the global average.Still, experts said the bigger threat to the environment is consumption, which is highest in developed countries not undergoing big population increases. The report also said that India is expected to overtake China next year as the world’...