Marcus Toynboyalé, Food Scientist and Campaigner, The College of Food Enterprise, Lincoln.

“There is a genuine climate threat to our global civilisation. I’ve tried to convey the nature of this threat in my eyes and mouth posture in the photograph. As yet the threat is guttural, inchoate, a growl. But already we can see some of the words forming that will be included in the threat: war, chaos, insecurity, melt, recycle bin.”