When we asked people who they’d like to hear more from on climate and sustainability issues, some simply replied women.

In compiling our list of top fifteen voices in climate change, it was striking that whereas the long list included a lot of women, only three made the final list.

So here’s a list of twenty women making waves in the climate change debate, offered in alphabetical order, and without any men to get in the way. We hope it shows off some of the quiet – and not so quiet – power women do have on this issue, and the diversity of the debate. Gender aside, this list reflects other diversities of the climate debate, with expertise in financial systems, workers’ rights, science, politics, development, media, diplomacy and more.

It’s only a start though. Who would you add? And who would you like to hear more from?