In tackling the climate crisis, nations have to transform their energy sector, a key component responsible for the majority of global greenhouse gas emissions. The International Energy Agency (IEA) has set out a pathway on what countries must do starting now. But how feasible are its projected milestones and can nations with vastly different resources keep to their commitments? Jaime Ho speaks to co-author of the IEA's report, Dr Timur Gul.