Europe's home-grown fuel: Growing non-food crops in empty fields appears to offer many advantages, but British farmers seem reluctant to cultivate them unless they are paid higher subsidiesFeatures
South Africa's other bush war: Immigrant plants are sweeping through the Cape of Africa, threatening to strangle the region's prized bush vegetation. Conservationists have struck back, but their actions may have hidden costsFeatures
South Africa takes the apartheid out of power: Although more than half the electricity generated in all Africa is produced in South Africa, most of the country's black people have no power supply. But things are changingFeatures