Judith Curry is fast becoming the go-to scientist favoured by the more sceptical ends of the climate debate, though she is more than capable of making a name for herself in her own right. An established climate scientist, well known for her research on hurricanes and Arctic ice, Curry is currently Chair of the School of Earth and Atmospheric Sciences at the Georgia Institute of Technology. Troubled by the way those who do not fit with scientific consensus are treated by the scientific community and broader environmental discourse she regularly speaks up for the role of dissent and free speech in climate science. It is fair to say this doesn’t always win her friends in either science or the green movement. Curry is an active blogger, reflecting her commitment to transparency of the debate within science, and can be found on Twitter @curryja.

Barbara Buchner
How will we pay for action on climate change?

Sharan Burrow
Leading the workers’ fight on climate

Winnie Byanyima
Oxfam’s leader bringing expertise on gender and climate change

Heidi Cullen
Climatologist leading us through Years of Living Dangerously

Judith Curry
Blogger and scientist favoured by sceptics

Christiana Figueres
Most powerful woman in climate? Heads the UNFCCC

Tamsin Edwards
Scientist making a name for herself as a fearless communicator

Joanna Haigh
Solar expert, rare female Fellow of the Royal Society

Katherine Hayhoe
Evangelical Christian climate scientist and communicator

Connie Hedegaard
Danish politician, been leading EU work on climate

Lesley Hughes
Scientist standing up to politicians’ scepticism in Australia

Naomi Klein
Writer inviting us to consider ideological sides of climate debate

Annie Leonard
New head of Greenpeace USA, community organiser

Corinne Le Quéré
Scientist highly respected in communications and policy

Gina McCarthy
Head of the EPA, face of Obama’s recent climate push

Naomi Oreskes
Historian of science pointing out the ‘merchants of doubt’

Mary Robinson
First female President of Ireland, UN Special Envoy for Climate Change

Julia Slingo
Helping us understand climate and weather

Koko Warner
World authority on climate change and migration

Ailun Yang
Helping unpick low-carbon development in China and elsewhere
Founded in 1931, the International Council for Science (ICSU) is a non-governmental organization representing a global membership that includes both national scientific bodies (121 National Members representing 141 countries) and International Scientific Unions (30 Members).
Road to Paris is where science, policy and economics meet on our way to the 2015 climate conference in Paris.
Road to Paris is where science, policy and economics meet on our way to the 2015 climate conference in Paris.