Sir Nigel Wilson is chief executive of Legal & General

Global leaders have faced serious geopolitical challenges and market upheavals in 2022. As Egypt gears up for COP27, they face another choice: to take a long-term view and use the conference to reaffirm and act on their commitment to net zero, or to take a shorter-term decision to respond to cost-of-living and energy security crises by putting net zero on ice.