The New Faces of GWP*: Temperature neutrality and no additional warming

November 2025 Report
The New Faces of GWP*: Temperature neutrality and no additional warming 1

Briefing Note – The New Faces of GWP*

In 2023, our report Seeing Stars debunked various issues with GWP* – including demon-

strating how GWP* can be used by companies and countries to claim they are climate

neutral or even cooling the planet while continuing to emit huge amounts of methane.

 

This briefing represents an update based on FOI requests in Ireland, New Zea-

land, Europe and Northern Ireland looking at the state of play before COP30.

This includes decoding the new terminologies that are being developed, like no

additional warming and temperature neutrality, which are increasingly used

by policymakers to obscure GWP*’s use. We also look at objections from scientists

and how countries’ use of GWP* adds up concretely in terms of emissions.

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