Air pollution is a major public health concern worldwide. It is always important and interesting to know which countries have the dirtiest and cleanest air in the world, which may vary over different time periods. In a previous essay, top 10 countries with the world’s dirtiest air in 2019 was introduced. However, it remains interesting for me to know which countries have the … [Read more...] about Top 10 Countries with The World’s Dirtiest and Cleanest Air, 1990-2017
Over the next 30 years, Sub-Saharan Africa’s population is expected to double, adding an additional one billion people, said a new UN Population Division report released on 17 June 2019. It is further projected that the region’s population will still be rising fast at the end of the century, when the number of people in other regions on Earth will be reducing.The UN report … [Read more...] about Sub-Saharan Africa Population Will Double by 2050, Amazing or Alarming?