How weeds are being used to clean up oil spills
The invasive species, introduced to Africa from South America in the late 1800s, has wreaked havoc by clogging up lakes and waterways, destroying ecosystems and putting livelihoods at risk. Recent data on the plant’s economic impact is lacking but in Benin, an infestation during 1999 was found to reduce the annual income of 200,000 people … Read more
