Tell us what you think was the most significant change in 2015, and how this affects our chances of a sustainable future.
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The most thought-provoking insights will be shared in the Futures Centre's annual publication, The Long View 2016, and the top three contributors will each receive a prize copy.
Submissions close 10 Dec 2015.
Image credit: Mohammed Fkriy
Thank you for your insightful comments Richard Gillies, Chhavi Sharma and Richard Ellis, your entries have been selected to be published in The Long View 2016.