LeadersBunged upA great green investment boom is under way. Bottlenecks are an underappreciated problemAS THE WORLD economy wakes back up, shortages and price spikes are affecting everything from the supply of Taiwanese chips to the cost of a French breakfast.As we explain this week, one kind of bottleneck deserves special attention: the supply-side problems, such as scarce metals and land constraints, that threaten to slow the green-energy boom.Far from being transitory, these bottlenecks risk becoming a recurring feature of the world economy for years to come because the shift to a cleaner energy system is still only in its infancy.Governments must respond to these market signals, facilitating a huge private-sector investment boom over the next decade that increases capacity.If they don’t, they stand little chance of keeping their promises to reach “net-zero” emissions.Scientists and activists have worried about climate change for decades.Recently politicians have shown signs of more commitment: countries accounting for over 70% of world GDP and greenhouse gases now have targets for net-zero emissions, typically by 2050.And there has been a dramatic shift in the attitude of business.
