Volcanic winter blocks some sunlight, reducing plant growth efficiency to about 70% of normal, and the temperature on the map decreases. The duration is uncertain and is considered a relatively long event.
The presence of smoke generators in raids has the same effect as Volcanic Winter. If dark affinity is used in a meme, it's a super positive influence. The toxic dust will poison animals and people exposed under the roof and plants will slowly die. The duration is from a few days to 1 month, that is, it will definitely end within 15 days. the average temperature is high. Long cards are easier to find.
The presence of a pollution generator during an attack has the same effect as toxic dust. The toxic dust will remain there until the pollution generator is destroyed.