Experts argue net-zero pathway matters as much as 2050 target

Centre on Global Energy Policy experts argue that delaying emissions cuts can nearly double temperature rise even if net-zero by 2050 is met, stressing the trajectory over the destination. The analysis elevates near-term 2030 milestones, reinforcing why interim science-based targets matter for Indian corporates setting decarbonisation plans.

Ahead of COP28, experts Áine Greene and James Glynn from the Centre on Global Energy Policy analysed the Paris Agreement, ratified at COP21 in 2015, which set goals to limit warming well below 2°C and strive for 1.5°C under Article 2 and emphasises net-zero balance under Article 4. They argue that different emissions trajectories to net-zero by 2050 yield vastly varying warming, and that delaying significant reductions can nearly double the temperature rise compared to early, proactive action.

The analysis affects countries and entities setting net-zero strategies, particularly the United States as a major emitter urged to lead by investing in zero-carbon energy and removing barriers. Using science-based pathways derived from IPCC data, the experts illustrate the emissions reductions needed to limit warming below 2°C and ideally 1.5°C. These pathways give countries and entities a data-driven foundation to calibrate efforts, with particular emphasis on accelerating emissions reduction by 2030 rather than relying solely on a distant 2050 endpoint.

Entities should set ambitious near-term milestones and pursue early action, as the analysis stresses the rapidly diminishing window of opportunity. The experts highlight COP28 and the first Global Stocktake under the Paris Agreement as moments demanding course correction. Companies and governments can align their energy-transition trajectories with science-based pathways, prioritise emissions cuts by 2030, and treat every fraction of a degree as material, recognising that a robust pathway, not just a net-zero destination, determines climate outcomes.

Key figure — Warming impact: delayed action can nearly double temperature rise versus early cuts