The share of green (vegetated) and blue (water) areas within cities (2006) can influence the urban heat island effect. Also, population density is associated with increasing this effect of cities and exacerbate the effects of heat waves.
Avoid disposing any waste on the streets, in nature, and especially not in the gutter. This rubbish can end up in the water treatment system and overcharge the decontamination process. Take advantage of city waste baskets. They are everywhere and that's what they are for.
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