What percentage of Earth's population lives in the Northern Hemisphere?
As of 2015, approximately 6.4 billion people live in the Northern Hemisphere, representing around 87.0% of Earth's total human population of 7.3 billion.
Questions about Northern Hemisphere
Short answers, pulled from the story.
Why do hurricanes spin counterclockwise in the Northern Hemisphere?
Hurricanes are massive low-pressure systems, and in the Northern Hemisphere the Coriolis effect causes air rising from the surface to draw surrounding air inward in a counterclockwise pattern. Objects moving across the northern surface tend to veer to the right, producing this characteristic spin.
What is Earth's axial tilt and how does it affect the Northern Hemisphere seasons?
Earth's axial tilt is 23.439281 degrees. This tilt causes seasonal variation in day length and temperature; Northern Hemisphere winter runs from the December solstice (typically December 21 UTC) to the March equinox (typically March 20 UTC), while summer spans the June solstice to the September equinox (typically September 23 UTC).
How much of the Northern Hemisphere surface is land versus water?
The surface of the Northern Hemisphere is 60.7% water and contains 67.3% of Earth's total land. This compares with 80.9% water coverage in the Southern Hemisphere.
When did the last ice age glacial period end in the Northern Hemisphere?
The last cold episode of the most recent glacial period ended approximately 10,000 years ago. Earth is currently in the Holocene, a warm interglacial period within the Quaternary. During the Pleistocene, which lasted about 2.5 million years, glacial advances occurred at intervals of roughly 40,000 to 100,000 years.
Why is the Northern Hemisphere better for deep-space observation than the Southern Hemisphere?
The North Pole faces away from the Galactic Center of the Milky Way, so the Milky Way appears sparser and dimmer overhead in the Northern Hemisphere. This means northern observers are not obscured by the galaxy's dense core, making the region more suitable for observing distant objects beyond our galaxy.