We’re seeing more news about damage from downpours lately, and it seems to be happening more often. I’m wondering if it’s because of global warming, which is causing more seawater to evaporate. As the water evaporates, it rains more, which can lead to flooding and other damage. I’m not sure if this is the only factor, but it seems like a likely possibility.
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We are seeing heavier and longer rain storms, due to the exact reasons you listed. But also more land has been developed. Developed land doesn’t drain as well. Water can’t get into the ground if there is now a paved parking lot, houses, office buildings, etc. in the way. That means the water will flow along the surface until it can find somewhere to go. That results in rivers and catch basins having a lot more of the rain ending up in them than would have happened if there was exposed land to absorb the water. More rain happening, more of the water ending up in the river, equals more occurrences of water flowing over the banks of the river which causes flooding of populated areas (which are in turn no longer drainable land so the flood waters get stuck waiting to drain back into the river they came from)
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