In the Celtic calendar, which is closely tied to the Earth’s growth cycles, autumn begins in August and also covers the ...

This effect, however, is counteracted by increasing photosynthesis in spring and summer through rising CO 2 concentrations, warmer summer periods and earlier leaf emergence. Zani and Zohner developed ...

Equinoxes occur twice a year, in March and September, to mark the onset of spring and autumn. During an equinox, which in Latin translates to “equal night,” both day and night are equal.

In 2023, Tokyo is expected to reach peak autumn foliage on Dec 1, which is three days later than average. In the 1950s, such foliage appeared in the city between Nov 8 and 15. Over in the Nasu ...