The cost of electric vehicles (EVs) has long looked like a barrier to adoption in Africa. Most researchers didn’t expect battery power to become affordable enough to replace petrol or diesel on the continent before 2040. But falling battery costs, surging global EV production and abundant solar resources are changing that view. Our new research...

Companies too often fail to pay suppliers A visitor examined a marijuana sample at the New England Cannabis Convention in Boston in 2018.Steven Senne Massachusetts’ cannabis industry is awash in debt. Often, pot shops, cultivators, and associated companies can’t pay their lenders, taxes, or suppliers. What to do about this debt — and whether government...

Brookline residents are divided over a proposed statewide ballot question that would repeal Massachusetts’ legalization of recreational cannabis, with supporters arguing the policy has contributed to youth drug use and opponents warning that reversing it could revive inequities from the era of prohibition. The proposal, titled “An Act to Restore a Sensible Cannabis Policy,” has...