cloud seeding

City authorities have also said they will trial cloud seeding by aeroplanes for the first time over Delhi this month, the practice of firing salt or other chemicals into clouds to induce rain to clear the air.

"We've already got everything we need to do the cloud seeding", Delhi Environment Minister Manjinder Singh Sirsa told reporters this month, saying flight trials and pilot training had been completed.

To make it rain over Texas — part of a weather modification practice known as cloud seeding, which uses chemical compounds to augment water droplets inside clouds, making the drops large enough and heavy enough to fall to the ground.

The amount of material injected into the atmosphere during cloud seeding and geoengineering operations pales in comparison to the trillions of tons of carbon dioxide humans have already spewed into the atmosphere, he said.

One of Rainmaker’s first clients was the Utah Department of Natural Resources, which was interested in cloud seeding as a response to the drying of the Great Salt Lake, Doricko said.