When plants become desiccated, tiny leaf pores collectively called stomata close to conserve water. Each stoma is flanked by a pair of ‘guard cells’, which change shape to open or close the central pore.
Pests and diseases already destroy about a third of potential cocoa production, and with climate change there will be a greater threat to future supplies of cocoa.
Raw sugar prices climbed to their highest level in 29 years on 1 February, with raw sugar for March delivery reaching 30.05 US cents a pound in early afternoon trading on ICE Futures US.
Mali had some 30mn chickens, ducks, guinea fowl and turkeys in 2005, but not enough protein-rich poultry products are consumed locally, according to the government and nutritionists.
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