The winter solstice is past, but bundle up – January is when winter really arrives in many parts of the Northern Hemisphere.
Washington, California and Florida are mulling a permanent switch to DST. Proponents say that doing so could improve health, save energy and prevent crime.
Did you ever consider that human beings might have a breeding season? Birth seasonality exists – and has interesting implications for childhood disease outbreaks.
The tilt of Earth’s axis as it orbits the sun results in the seasonal changes.