Countries in middle-east and north Africa are racing to develop chemicals to get rain drops out of the cloud.
Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation that falls from clouds by dispersing substances (such as silver iodide, potassium iodide and dry ice (solid carbon dioxide) and liquid propane) into the air that serve as cloud condensation or ice nuclei.
- Benefit: It improves a cloud’s ability to produce rain or snow, supplements the rainwater supplyand cleans the atmosphere by introducing tiny ice nuclei into certain types of subfreezing clouds. These nuclei provide a base for snowflakes to form.
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