Federica Marsi is a freelance journalist reporting from across the Middle East and East Africa. 
From a nuisance to a benefit, ‘world’s worst weed’ finds new use as biofuel
KISUMU, Kenya — First light finds Edikite Ochieng' Otieno waist-deep in weeds on the banks of Lake Victoria in western Kenya. A nearly unbroken mat of water hyacinth covers the…
