Business Ambition for 1.5°C

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, in partnership with the Race to Zero.

We’re calling on companies - across all sectors and geographies - to set science-based net-zero aligned emissions reductions targets.

By signing up to the Net-Zero Standard and committing to set a target in line with a 1.5C and net-zero future - our only future - your company can make its critical contribution to limiting the worst impacts of climate breakdown.

View the Status Report for the Business Ambition for 1.5°C Campaign.

1.5°C #OurOnlyFuture
1541 companies committed

Why 1.5C and Net-Zero

The IPCC’s Sixth Assessment report was ‘code red’ for humanity.

It showcased the need for urgent climate action to maintain a habitable planet for humankind.

To avoid the most significant effects of climate breakdown, we must halve greenhouse gas emissions before 2030, achieve net-zero emissions before 2050 and halt global temperature rise to 1.5°C.

That’s why we are inviting all business leaders to publicly commit their companies to a science-based net-zero and 1.5°C target, and join the Race to Zero.

Your leadership on climate action starts now.

Learn more

For organizations with existing science-based targets, we encourage you to 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 and net-zero pathway.

The SBTi reserves the right to carry out due diligence reviews before accepting signed commitment letters.

Frequently asked questions

Join the business leaders taking ambitious climate action

COMMIT Submit a signed SBTi Commitment Letter with the net-zero option ticked
DEVELOP Work on an emissions reduction target in line with the SBTi Net-Zero Standard
SUBMIT Present your target to the SBTi for official validation
COMMUNICATE Announce your target and inform your stakeholders
DISCLOSE Report company-wide emissions and progress against targets on an annual basis

Partners and Supporters

Business Ambition for 1.5°C is a campaign 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.


On 19 October 2021, the SBTi's #ClimateActionDay saw over 750 companies from across more than 10 countries worldwide come together to celebrate ambitious 1.5°C-aligned climate action.

The day successfully showcased far-reaching and significant corporate support for bold 1.5°C-aligned climate action ahead of COP26.