Another point that emerges from this plot is that, because most island nations are found at low latitudes (i.e., <25° north or south of the equator), island countries tend to have rather high proportions of their floras threatened.
The largest AK prevalence has been reported in the southern hemisphere [ 13, 14], in populations near the equator and in countries with a high proportion of white inhabitants [ 2].
The equator cuts the country into two halves.
Distance from the equator for each country refers to the distance of the capital city from the equator.
Furthermore, O3b's service will be available only in a ribbon around the equator, covering most developing countries.
Sierra Leone is a country in West Africa, close to the equator, with an area of 71,740 square kilometres (27,700 square miles) —similar in size to South Carolina or Scotland.
As the Sun's vertical rays move south of the equator, most of the country experiences moderately cool weather; temperatures change by about per degree of latitude.
Currently, the risk factors for vitamin D deficiency in CKD patients in Singapore (1°22′ north of the equator), a sun-rich country, are unknown.
(Longer flights will be possible over countries near the equator, because they are sunnier and there is less wind).
Over the coming months, the El Niño pattern will bring more rain, flooding and higher sea levels to countries near the equator, raising the risk of inundation for low-lying atolls already feeling the impacts of climate change.
