Evidence from numerous global studies indicates that dryland degradation is a threat to nearly two billion people globally. Thus, the prevention of dryland degradation has positive implications for food and environmental security, human settlements, and climate change. The study investigated arid and semi-arid land in Kenya to enhance local communities’ capacity regarding climate change adaptation and mitigation approaches. During the 2012–2013 period, a 10-acre piece of land at the Chemeron Research Centre at Egerton University was enclosed for a rangeland rehabilitation experimental project using both active and passive restoration measures: Natural regeneration and afforestation and rangeland reseeding. During the said period, seedlings of five tree species were planted. Further, seeds of three grass species were planted in the same study area. Three years later, our results showed up to 90% survival and establishment for Azadirachta indica, Leucaena leucocephala, and Senna siamea. After 70% of Cenchrus ciliaris had survived and established, it became one of the dominant grasses in the area. Grasses that grew from seedbanks were Aristida kenyensis, Chloris roxburghiana, and Cynodon dactylon, and among the herbs Aerva persica, Microchloa Kunthii, Justicia betonica, among others. Some of the shrubs that naturally regenerated were Acacia brevispica, Acalypha fruticosa, and Indigofera arrecta. Transfer and adoption of Cenchrus ciliaris grass as a climate-smart rehabilitation technology for the local communities is already underway. Thus far, acceptance amongst the local communities has been received. This project is contributing to the achievement of the Land Degradation Neutrality Initiative, Rome’s promise for drylands, and REDD+ initiatives.