Here in Britain, as the first snows fall, heralding what may be our fourth
cold winter in a row, it is time we addressed one of the most glaring
political "disconnects" in our sadly misgoverned country.....writes Christopher Booker - read the full article here
The world's population is 7 billion, and Earth's total area (including land and water) is 510 million square kilometers (197 million square miles). Therefore the worldwide human population density is 6.8 billion ÷ 510 million = 13.3 per km2 (34.5 per sq. mile). If only the Earth's land area of 150 million km2 (58 million sq. miles) is taken into account, then human population density increases to 45.3 per km2 (117.2 per sq. mile). This calculation includes all continental and island land area, including Antarctica. If Antarctica is also excluded, then population density rises to 50 people per km2 (129.28 per sq. mile).Considering that over half of the Earth's land mass consists of areas inhospitable to human inhabitation, such as deserts and high mountains, and that population tends to cluster around seaports and fresh water sources, this number by itself does not give any meaningful measurement of human population density.
ReplyDeleteWeall have 20,000 sq meters each of the planet.
Anyone want to buy my share.
The amount of solar energy reaching the surface of the planet is so vast that in one year it is about twice as much as will ever be obtained from all of the Earth's non-renewable resources of coal, oil, natural gas, and mined uranium combined.
ReplyDeleteWhat do humans do to solve the energy problem?
We build windturbines.