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What is the northern hemisphere?

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The literal definition of hemisphere is “half sphere” which may lead people to believe that the Northern Hemisphere would include half the countries of the world and half the population. This is a mistaken assumption. read more

The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as being in the same celestial hemisphere relative to the invariable plane of the solar system as Earth's North pole. read more

Because the Northern Hemisphere has more land area than the Southern Hemisphere it should also be noted that the majority of Earth's population and its largest cities are also in its northern half. Some estimates say that the Northern Hemisphere is approximately 39.3% land, while the Southern half is only 19.1% land. read more

Those levels of methane, however, were found to range from 0.2 to about 0.7 parts per billion, with concentrations peaking near the end of the summer in the northern hemisphere, according to a study published today in Science. read more

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