Table 1 Assumptions about the primary driving forces affecting land-use and land-cover change
From: Projecting the spatiotemporal carbon dynamics of the Greater Yellowstone Ecosystem from 2006 to 2050
Driving forces | A1B | A2 | B1 |
|---|---|---|---|
Population growth (global and United States)* | Medium. Globally, 8.7 billion by 2050, then declining; in the United States, 385 million by 2050 | High. Globally, 15.1 billion by 2100; in the United States, 417 million by 2050 | Medium. Globally, 8.7 billion by 2050, then declining; in the United States, 385 million by 2050 |
Economic growth* | Very high. U.S. per-capita income $72,531 by 2050 | Medium. U.S. per-capita income $47,766 by 2050 | High. U.S. per-capita income $59,880 by 2050 |
Regional or global orientation | Global | Regional | Global |
Technological innovation | Rapid | Slow | Rapid |
Energy sector | Balanced use | Adaptation to local resources | Smooth transition to renewable |
Environmental protection | Active management | Local and regional focus | Protection of biodiversity |