You split a global cut. Weigh three ideas of fairness
India burden0%
India own cut0%
US own cut0%

Source: Our World in Data / Global Carbon Budget 2024 (history, fossil CO2 since 1750); EDGAR 2025 (2024 greenhouse gases, per person). Rest of world includes the EU; its history, population and per-person figure are derived. The cut size is your assumption.