Despite widespread enthusiasm about conservation agriculture (CA) in Africa, empirical evidence on adoption remains fragmentary. This study examines adoption rates of a critical component of CA, minimum tillage (MT), among 135,000 Zambian cotton farmers by comparing the results of two censuses...

Hydrogen holds a prominent role as renewable energy carrier of the future due to its high gravimetric energy density. However, the most urgent technological challenge—especially concerning mobile applications in fuel cell vehicles—is the development of appropriate hydrogen storage options....