under the weather

Weather control is a prospect that remains well beyond our technological reach, but that could change in the relatively near future.

According to nanotechnology expert J. Storrs Hall, the author of Nanofuture: What’s Next for Nanotechnology, we could start to build a weather machine later this century.

His proposed system would consist of a massive but thin global cloud of small transparent balloons stationed in the stratosphere.

It would basically work as a kind of programmable and reversible greenhouse gas. When the mirrors on the hydrogen balloons face away from Earth, they would reflect sunlight back into space.

io9.gizmodo, 4 Aug 2015

see also – action plan