Almost 60 anti-salt dykes have been built across four regions of Senegal, allowing some 7,000 hectares of once-toxic land to be farmed.
As a moth, they are good flyers averaging about 100 kilometres a night. If left untreated, the armyworm can cause crop losses of up to 50%, munching its way through a hectare within 72 hours.
More than 80% of the water reaching Egypt comes from the Blue Nile which originates in Ethiopia.
We employed reasoning informed by game theory to figure out whether elephant poaching is likely to increase or decrease under each China policy scenario in the future
There is over 60km of methane gas dissolved in the deep water of the lake; the supersaturated gas would release spontaneously if the deep water was displaced upward – just like a soda bottle pops when it is vigorously shaken