The sale of a slice of Saudi Aramco will be the biggest initial public offering (IPO) in human history. The Crown Prince believes his company is worth a total of $2 trillion. But investors must consider current low oil prices and climate mitigation policies when assessing value. BRENDAN MONTAGUE reports
Can the cut-throat, speculative world of the stock market be used to hold businesses to account for environmental damage and human rights abuses? Chris Milton investigates for the Ecologist
