Global warming requires global solutions but the current two-tier architecture on mitigation actions has raised concern over the problem of emissions relocation. While total C02 emissions from OECD countries tended to stabilise after the turn of this century, those from Developing Asia continued to rise much faster than the world average (7.3% versus 2.6%) during the 2000-10 period. This is due largely to China's emission growth doubling from 4.1% in 1990-2000 to 8.6% in 2000-10 (Table 4.1).