Table 1.

Main assumptions on climate policy implementation per scenario.

Scenario	Policy assumptions
	Until 2030	After 2030
No new policies	None	None
National policies	Implementation of current domestic policies	Equivalent effort to policy implementation before 2030
NDCs	Full implementation of conditional national NDCs	Equivalent effort to NDC implementation before 2030
2 °C/1.5 °C	Each country implements current implemented polices until 2020 and starts with cost-effective implementation to achieve the 2 °C/1.5 °C target between 2020 and 2030 with high (>66%) probability, thereby staying within a global carbon budget of 1000 GtCO2 and 400 GtCO2 in the 2011–2100 period	Continuation of cost-effective implementation to achieve the 2 °C/1.5 °C target