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Floods are obviously caused by heavy rainfall. This creates two hazards, the flooding of waterways, and the increase of landslips.

As to waterways, usually records will be available as to historic floods in the area.

Landslides are a rather different matter. If a hill surface is steeper than its rest angle, it will slip if it becomes saturated with water. This tendency is increased by the removal of forest and ground cover, and when a hillside is urbanized, the stormwater will be discharged much more quickly. (From the roofs etc.)

One early effect of climate warming is to increase the amount of water vapour evaporated into the air. This will eventually be deposited as rainfall, or if transported to higher latitudes, as snow.

If you are a believer in climate change, then you may expect higher monsoon floods, generally higher rainfalls, and an increase in landslips.

If you are not such a believer, you may just be mildly surprized.

So to the Q. Bear the above in mind when purchasing a property.

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14y ago

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