An enlightening way to experience the seasons.

• Position: ECOlogical Calendar - What's New?

The revolutionary ECOlogical Calendar, now in its sixth edition, seeks nothing less than to transform our concept of time and bring us back into closer connection with the natural world. Unlike the typical Gregorian calendar's gridlike format, which merely measures the days it takes for Earth to revolve around the sun, the ECOlogical calendar's colorful three-foot-long (and one foot high) panels on its wall version depict Earth's four seasons--from solstice to equinox and vice versa--and examine the relationship of the planet's organisms with their environment.

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Each panel's design reflects the interaction among land, sea, and sky while emphasizing the age-old procession of life from season to season. Designed for use in the Northern Hemisphere, it presents information on seasonably visible stars, the phases of the Moon and tides, the ratios of darkness and light, the seasonal behavior of Earth's creatures, and a host...