The stakes have never been higher – a radical movement such as Extinction Rebellion can act as a catalyst for political debate and change

For decades, we have faced an incontrovertible truth: that human lifestyles are risking the future habitability of our planet. For decades, political leaders have invoked rousing rhetoric in the face of this challenge while failing to act to avert catastrophe. Climate change is an existential risk to the future and the window available to prevent disastrous overheating is closing rapidly.

Only now, almost 30 years after the International Panel on Climate Change published its first report setting out the scientific evidence, is there any sense that something may be shifting in popular and political perceptions. Extinction Rebellion protesters have brought parts of central London to a standstill, their action coming in the wake of the school climate strikes, when more than 1.4 million young people took part globally. For his part, the governor of the Bank of England, Mark Carney, warned the financial sector last week that it must take the threat seriously, framing the argument in terms that it understands best: that in a heated world there is a real risk to profit margins.