Summer is an overloaded word. The solstice doesn't change. What changes, is the temperature and thus climate, out of sync with the longer baseline. Lunar calend

Summer is an overloaded word. The solstice doesn't change. What changes, is the temperature and thus climate, out of sync with the longer baseline. Lunar calendars don't generally inform plant behaviour as strongly as temperature but day/night cycle time isn't changing while temperature is, and that may play havoc with wildlife and plants which depend on aspects of day/night cycle for best breeding outcomes.