Nowruz, which starts on the vernal equinox and marks the Iranian New Year, is celebrated by more than 300 million people in diverse communities across the world.
Women atop the Pyramid of the Sun stretch and get energy from the rising sun during celebrations of the spring equinox on March 21st, 2018.
Climate change has affected different regions differently. See the effects in your hometown.
Do warmer temperatures get us all hot and bothered?