Annual land-use CO 2 emissions, representing the net land carbon flux for the baseline scenario (black line), two permanent storage scenarios (solid red and blue lines) and two temporary storage scenarios (dashed purple and red lines). Permanent storage simulations were represented by decreased emissions from the baseline, sustained until 2050 (solid red line) or until the end of the simulation (solid blue line). These permanent storage simulations represent cases where decreased net land-use emissions lead to increased land carbon storage that remains sequestered throughout the simulation. Temporary storage simulation followed the same initial decrease until either 2037 (purple dashed line) or 2050 (dashed red line), after which emissions were abruptly increased relative to the baseline to represent a switch from carbon sequestration to re-emission of previously stored carbon. These temporary storage simulations represent a case where carbon is sequestered until 2037 or 2050, and then gradually re-emitted to the atmosphere over a period of either 15 years (dashed purple) or 50 years (dashed red).
