This
means that although the oxygen
percentage in the
air stays the same, you will still take in less oxygen with every breath you take because the
air is less dense, or «thinner».
An analysis of data pertaining to the period 1861 — 1986 reveals that (1) a 1 °C rise in the
mean annual
air temperature of the British Isles has historically been associated with a 35 % drop in the
percentage of days that the United Kingdom has experienced cyclonic flow, and (2) a 2 °C increase in the
mean annual
air temperature over the sea to the north has typically been matched by a 60 % drop in the
percentage of days that the isles have experienced cyclonic flow originating from that source region.