What does solarised mean?

Solarised is what happens to things when the sun shines on them.

The planet heats up, gardens grow, PV cells generate electricity, faces get warm, the air at the planet's surface warms up, expands, gets lighter, rises, and this rise, in turn, gives rise to wind.

In short, everything under the sun gets solarised!

Its spelt with a 'z' in America - solarized.