Hi everyone I recently watched an episode of Dirty Jobs, where they load a smaller truck with material they then spray on huge areas of soil. This technique inspired me, to come up with my own system to green huge areas in a minimal period of time. The system works as followed: 1. Spray the dry soil with a material, that is very dry and which sucks up the slightest bit of humility, while cooling the desert soil underneath it. Cooling huge areas of desert soil is one part, now comes the tricky part, this material needs to let some sunlight through so that photosynthesis can happen. 2. If the soil is now cooled and way more humid, drive the same area with a second truck, that this time not sprays, but shoots seeds through the covering layer into the humid soil. This way no-one would have to work on every square meter of ground, but drive up huge areas of soil, first spraying them, then shooting resilient seeds into it. But what material could be used, to cover and cool the soil as explained above?