Political scientist Bjorn Lomborg: ‘You can’t spend on everything’
政治学家比约恩•隆堡：‘你不能在所有事情上都花钱’

The ‘sceptical environmentalist’ used cost-benefit analysis to argue against emissions cuts. Now he has turned his attention to overseas aid
这位“持怀疑态度的环保主义者”曾利用成本效益分析来反对减排。现在，他将注意力转向了海外援助。