Please take a look at www.nagafoundation.org.
These guys (from Holland) can green desert like environments in just 2 years by just digging ditches in the landscape..
Physics and biology (aka: nature) do the rest instant and for free. In just 2 years time.
Preventing migration and delivering food security never was so simple.
Going in-line with physics and nature is always mega successful (as it delivers these 2 very powerful forces as tailwind instead of headwind).
If you can: proclaim this solution by your work for IPS.