Nairobi, Aug. 12 -- Agriculture is the foundation of millions of Kenyan livelihoods, national food security and rural prosperity. Yet it is also the sector most exposed to climate risk.

Every planting season is increasingly a gamble against drought, floods, pests, diseases and unpredictable weather.

This year, erratic rainfall has devastated harvests. In Nakuru, one maize farmer harvested 120 bags from five acres last season but only 26 bags this year using similar practices on the same land.

In Taita Taveta, crop failure has left tens of thousands facing food insecurity, while in West Pokot, thousands of households require food assistance.

For farming families, crop failure means depleted savings, inability to repay loans, children w...