National ambition levels
Move the sliders to increase the ambition level of each country's Nationally Determined Contributions (NDC). When a slider is at 50%, this means that the country's emissions are 50% below the level implied by the country's NDC. Red markers indicate that the level of ambition is lower than the country's current policies, while blue markers show levels that would be more ambitious than current policies.

Ambition levels for other countries in each region
The sliders below adjust the ambition levels of those countries in each region that are not included above

Impacts and risks associated with IPCC Reasons for Concern (RFCs)

Source: IPCC Special Report on Global Warming of 1.5°C (Figure SPM.2)

NDC Baseline scenario

Ambition increase

Percentage share of national emissions in 2030 (excluding LULCF)

NDC Baseline scenario

Ambition increase

Percentage share of regional emissions in 2030 (excluding LULUCF)

NDC Baseline scenario

Ambition increase

Annual maximum daily temperature per region

About us

The tool was developed by the Climate Policy Team of the Climate Analytics, in order to provide policy relevant information to stakeholders in a user friendly and accessible fashion.

The Climate Policy Team assesses the effectiveness of international strategies and national climate policies, including low-carbon development plans, in meeting global climate goals and reducing greenhouse gas emissions whilst achieving sustainable development goals.

The Climate Analytics is a non-profit science and policy institute. The institute’s mission is to provide state-of-the-art solutions to global and national climate change policy challenges. Supporting science-based policy to prevent dangerous climate change to enable sustainable development.

How to use this tool

How much do the major emitters need to increase their NDC ambition level to achieve the 1.5°C Paris Climate Agreement targets by the end of the century?

Move the sliders to increase the level of NDC ambition for respective countries and observe the implications on global emissions and temperature. Pay attention to the plots as you move the sliders. To see other plots and information, you can navigate to other sections by clicking the tab menu buttons above the page. Within the plot sections, there is also a navigation button below the plots that will take you to the second page within that section. The line and box plots show the global emission pathways and temperature levels by the end of the century respectively, that correspond to your level of ambition increase. The pie charts visualizes the percentage share of national emissions in 2030 according to the baseline NDCs as well as an ambition increase corresponding to your slider input. The range of values on the sliders correspond to the NDC ambition ramp-up scenarios as defined by Geiges et al. (2019). These consist of four ambition scenarios namely the minimal, incremental, significant and transformational scenarios equivalent to 10%, 20%, 35% and 50% change in emission levels lower than the current NDC levels.

Things to try

You may want to try setting all the sliders to the same ambition level and notice the corresponding level of emissions gap. Observe that there are no changes in the plots when the sliders are below the CPP levels You may have also observed that the plots are interactive, so you may want to move your mouse over the plots to get some vital information. There are several configuration options above the plots which includes a button for plot download in png format. Please feel free to try these out.


The Climate Analytics acknowledges funding from the Rocker Beller Foundation. We thank Andreas Geiges, Gaurav Ganti and Peter Pfleiderer for their inputs and contributions to the project. Our vote of thanks also goes to the Climate Policy Team for their support and recommendations.


For more information on our work, please contact:

Claire Fyson
Climate Policy Analyst
Climate Policy Team

If you face any issues using the tool, please contact:

Emmanuel Adeleke
Student Assistant
Climate Policy Team