
Business Ambition for 1.5°C
Join the visionary corporate leaders taking ambitious climate action.
Set a net-zero target in line with a 1.5°C future.

Join the 1.5°C business leaders
‘Business Ambition for 1.5°C’ is an urgent call to action from a global coalition of UN agencies, business and industry leaders.
We’re calling on companies to commit to set ambitious science-based emissions reduction targets.
By setting a net-zero target in line with a 1.5°C future — our only future — businesses can make their critical contribution to limiting the worst impacts of climate change.
So far, over 300 companies, representing more than $3.6 trillion in market cap, have responded to the open letter from global leaders, and signed the Business Ambition for 1.5°C commitment.
Why 1.5°C?
To hold off some of the worst climate impacts, and avoid irreversible damage to our societies, economies and the natural world, we must hold temperature rise to 1.5°C above pre-industrial levels. This requires halving greenhouse gas emissions by 2030 and hitting net-zero emissions by 2050.
That’s why we are inviting visionary business leaders to publicly commit their companies to a net-zero, 1.5°C target and be recognized in the lead up to COP 26 in November 2021. Leading companies are already proving that a 1.5°C-compliant business model is possible, and there is evidence that these companies will be best-placed to thrive as the global economy undergoes a just transition to a net-zero future by 2050.
Your leadership on climate action starts here.

Learn more
- Read the open letter to businesses from leading global figures
- Campaign FAQs
- Meet the companies taking action
For companies with existing SBTs, we invite you to voluntarily boost the ambition level of your current targets and align your scopes 1 and 2 ambition, along with scope 3 where relevant, with a 1.5°C pathway. Learn more.
The SBTi reserves the right to carry out due diligence reviews before accepting signed commitment letters. This applies to all SBTi commitments including those received through the Business Ambition for 1.5°C campaign.

Join the business leaders taking ambitious climate action
Partners and Supporters
Business Ambition for 1.5°C is a campaign is led by the Science Based Targets initiative in partnership with the UN Global Compact and the We Mean Business coalition. It was launched in 2019 by a global coalition of UN agencies, business and industry leaders.
Latest News
Policy priorities and approach
As businesses, now is the time to maximize your voice in the markets you operate and call on governments to provide you with the clarity and confidence you need to unlock further investments in climate solutions.
Read our new guide on policy advocacy for businesses taking climate action.

Uniting business and governments to recover better
A statement from companies in the SBTi and its Business Ambition for 1.5°C campaign.

Case Studies
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