Halfway between the solstices, neither hemisphere is tilted towad the sun. each of these days is called an equinox, which means equal night. this day occours when the sun passes directly overhead at the equator at noon, and night and day are both 12 hours long.
An equinox is an event in which a planet's subsolar point passes through its Equator. The equinoxes are the only time when both the Northern and Southern Hemisphere experience roughly equal amounts of daytime and nighttime
If we do nothing, the world will become significantly less habitable. ... Scientists have studied global warming for more than 100 years. ... The cumulative effect is to raise the planet's temperature. ... Scientists have taken detailed measurements of carbon dioxide (CO2) levels since the late 1950s
