The gap between rich and poor countries on vaccinations highlights the failure of richer nations to see it in their self-interest to urgently help poorer ones fight a shared crisis.
Arrival, a developer of electric vans and buses, says it has come up with a cheaper way to build vehicles in small factories. But can it deliver on that promise?
The device he developed with a colleague in the 1970s has prevented billions of tons of carbon emissions from being spewed by cars, trucks and lawn mowers.
