Table 3 Values for pressure indicators as leverage to reduce transgression of the control variables of the planetary boundaries

From: Exploring pathways for world development within planetary boundaries

Pressure indicator

Unit

2015

2050

   

BAUa

CP

SU

GHG emissions

GtCO2-eq yr−1

1.0

1.4

0.1

0.1

CFC-12 (Freon) emissions

Gg yr−1

1.0

0.0

0.0

0.0

Aerosol emissions

Gg BC yr−1

1.0

0.7

0.5

0.4

CO2 emissions

GtCO2 yr−1

1.0

1.4

−0.1

−0.00

Fertilizer use (N)

Tg N yr−1

1.0

1.4

1.1

0.8

Fertilizer use (P)

Tg P yr−1

1.0

1.4

1.3

0.8

Freshwater use

km3 yr−1

1.0

1.2

1.1

0.8

Total agricultural area

Gha

1.0

1.1

1.0

0.9

  1. aBAU for SSP2.
  2. Pressure indicators are all normalized to their 2015 values. CP, climate policy; SU, sustainability scenario.