GLYN KIRK/AFP via Getty Images AFP via Getty Images Tech opportunities in areas like 5-G, cloud computing, healthcare, and finance took up the last posting . This one examines opportunities in meeting two huge issues facing the world’s economies: the growing number of older retirees in populations and the big kahuna of climate change. Seldom do all the answers to these or any other problems lie in technological solutions, but tech certainly will have a role to play and a prominent one. The growing proportion of older people in the population has reached historical proportions, in the United States and throughout the developed world, including China. Increasingly, it will impose on economies. Because birth rates in the developed world have remained low for such a long time, Europe, Japan, China, and the United States have a dearth of young workers to replace the large and now retiring baby-boom generation. The U.S. Census Bureau estimates that the proportion of this country’s population of retirement age has expanded from 9.4 percent in 1960 to 17 percent in the 2020 census. Not all of those over 65 have left off working, but the Bureau reports that the country now has under 4 […]