Even at 80 years old, Raphael Mauyu, a dairy farmer from southeast Kenya, has no plans to retire. But not long ago, he worried that his advancing age would soon make it impossible to carry on his labour-intensive job. The nearest river only flows during... 

Some of the world’s biggest fossil-fuel producers are calling on taxpayers to help them kick their pollution habit. The world’s biggest oil, natural gas and mining companies are stepping up their campaign to deploy carbon capture and storage, or CCS,...