However, I believe that Australia could be one of the best places in the world for reforesting those deserts.
The Outback reportedly receives up to 100cm of rain every year already. Reforestation could start at the coasts and then slowly move inland.
https://en.wikipedia.org/wiki/Biotic_pump
https://www.theguardian.com/environment/2021/mar/20/our-bigg...
https://link.springer.com/article/10.1007/s10584-009-9626-y
https://www.youtube.com/watch?v=tB-8-sk1V6s