Policy changes in 2025 just delayed North American decarbonization by 5 to 8 years. I've been comparing our current forecast against last year's projections, and the divergence is significant. Energy-related CO2 emissions that were expected to hit certain milestones by 2045 won't reach those levels until 2050 or later. The numbers are quite straightforward: between 2024 and 2050, this policy shift translates to 19 gigatons of additional cumulative emissions. That's a fundamental change in trajectory. The delay doesn't hit every sector equally. Power generation will still decarbonize, just slower. The economics of solar and wind are too compelling to completely derail, even with reduced policy support. But the pace of coal retirements slows, and gas-fired generation extends its role by nearly a decade. Transportation takes the biggest hit. Rolling back EV incentives and fuel efficiency standards means oil's share of transport energy stays elevated well into the 2040s. We're now forecasting oil will still supply 53% of transport demand in 2050 vs. the 67% we projected for 2040 last year. Manufacturing and buildings show the most resistance to change. These sectors were already difficult to decarbonize, and reduced policy support makes the economics even harder. Natural gas maintains its position as a primary energy carrier through at least 2044. The deeper problem is the timing of the delay itself. We lost half a decade of momentum at exactly the moment when acceleration mattered most. And naturally, every year of delay compounds. Infrastructure decisions made today have 20-40 year lifespans. Natural gas pipelines being built now, LNG terminals coming online through 2028, and gas-fired power plants breaking ground this year. All of these lock in emissions profiles that extend decades into the future. By 2060, we'll still have nearly 1 GtCO2/yr in energy-related emissions even after accounting for carbon capture. Transport alone will account for 40% of that, with aviation representing two-thirds of transport emissions. The power sector can actually reach net-negative by 2060 through solar, wind, and bioenergy with carbon capture. But manufacturing, buildings, and transport remain stubbornly difficult to fully decarbonize. The policy changes creating this delay are being framed as supporting energy security and affordability. But the long-term cost of this delay (both economic and environmental) significantly outweighs any near-term benefits. We're essentially choosing short-term continuity over long-term transformation, and the math on that trade-off gets worse every year.
