At dawn on Monday, Greenpeace Africa activists used three tipper trucks to unload 5 tons of coal in front of Eskom’s...offices, effectively blocking the...main entrance...The action was intended to highlight the perceived cost of Eskom’s heavy reliance on coal for power, such as environmental destruction; the pollution of scarce water supplies; and the destruction of people’s health and well-being...Greenpeace’s Melita Steele said...“Eskom should end its addiction to coal and shift massive investments to large-scale renewable energy products,”...South Africa already emits half of Africa’s greenhouse gas emissions, mostly from coal-fired power stations...Eskom spokeswoman Hilary Joffe said...Eskom...had committed to ensuring that 43 percent of all new capacity would be renewable energy.