Operation Popeye goal was to increase rainfall in carefully selected areas to deny the Vietnamese enemy, namely military supply trucks, the use of roads by:

The increased evaporation from the larger water area of the oceans may have increased rainfall, which, in turn, increased the weathering of exposed rock.

The simultaneous breakup of Kenorland generally increased continental rainfall everywhere, thus increasing erosion and further reducing the other greenhouse gas carbon dioxide.

The purpose was, in part, to increase evaporation and thereby increase rainfall in the region downwind of an enlarged Lake Eyre.

No evidence to support the theory that an inland sea would increase rainfall has ever been produced, nor have any of the other claims been supported.

Later, he estimated that he had increased rainfall that year by 14 percent.

In addition to reviving the commercial fishery, experts expect the Small Aral revival to increase rainfall and expand pastures.

It is also clear to many climate scientists and oceanographers that warmer oceans will eventually increase the intensity and rainfall of hurricanes, but not necessarily their frequency.

Floods: Climate change could increase intense rainfall causing floods that could lead to significant infrastructural damage.

In many societies around the world, rain dances and other rituals have been used to attempt to increase rainfall.