Gabrielle has written four books exploring the relationship between humans and the planet we call home. Her books have been published in more than 20 countries and translated into a dozen languages.

Walker has a PhD in chemistry but she writes like a poet…[her] book should absorb and delight anyone who breathes

Los Angeles Times

[The Hot Topic is a]  model of clarity, comprehensiveness and, above all, sanity. It truly does find a middle ground in the climate debate - and in the process, probably counts as the single most important book on the subject'

New Scientist