Global climate change is the most serious and urgent problem of all that humanity has faced in its history. How we will solve it in the next thirty years will determine what kind of world we will live in and what kind of world we will pass on to our children and grandchildren. "Which future do we choose?" Is a passionate call to action by former Secretary of the United Nations Framework Convention on Climate Change Cristiana Figueres and her associate Tom Rivett-Carnac. The authors of the viruses: humanity can still avoid the worst-case scenario and prevent the catastrophic consequences of climate change, but act immediately. Practical, optimistic and inspiring, this book is addressed to all generations, to everyone who is oppressed by the consciousness of their own impotence in the face of the climate crisis. The authors show where to draw optimism from in order to play a positive role in the great changes ahead, and, finally, what practical steps each of us can take to make these changes.