The biggest battle in the climate sphere used to be between climate deniers and climate scientists, perhaps the battle we are most used to. Some, like Michael Mann for instance, are still earnestly fighting this one, but at the recent UK election, only 14% of voters opted for the one climate denial party (Reform). In fact the climate deniers are now more frequently climate denier deniers, ie denying they are or ever have been denying.

Then last year the biggest battle seemed to have become between climate campaigners and climate doomers. Rebecca Solnit wrote an exasperated piece in The Guardian in July last year called We can’t afford to be climate doomers, which drew an equally exasperated response from Jem Bendell called Let’s tell the moodsplainers they’re wrong and then get back to work.

I think Solnit clarifies most starkly what her argument is all about when she talks about hope:

Hope is not happiness or confidence or inner peace; it’s a commitment to search for possibilities.

However Bendell is also focused on searching for possible solutions. He quotes the Kenyan climate activist, Dr Nyambura Mbau, who argues that “The millions of people being uprooted by climate change do not benefit from the ‘stubborn optimism’ of environmental elites. Instead, they will be better served by the stubborn realism of the experts and activists now brave enough to call for urgent degrowth in rich countries and fair adaptation everywhere.”

Then there is that increasingly less marginal idea of degrowth. Only this week, James Meadway, Aashis Joshi and Jason Hickel had a fairly heated exchange on X about the recent paper by Hickel and Sullivan called How much growth is required to achieve good lives for all? Insights from needs-based analysis. Joshi felt that the degradation already caused by climate change made the outcomes possible via better distribution of wealth suggested by Hickel and Sullivan unachievable. One of Hickel’s tweeted responses went like this:

To say you’re happy to live in a world where you get to use a phone and laptop, but these should be actively denied to people who don’t have them because… ecological collapse might happen? Not acceptable.

I saw another take on this by Chris Shaw earlier today at the Dark Times Academy launch event. He seemed to share many of the views set out by Bendell above, and his book, Liberalism and the Challenge of Climate Change, goes further in suggesting that liberalism cannot provide us with acceptable climate solutions as long as it continues to present net zero as solving all our problems rather than as the least worst option that will still leave us with a much depleted global environment. His dismissal of degrowth revolved around the lack of narrative of how we get from here to there, specifically the dramatic movement of political power that would be required. However amongst the academics presenting their new courses for the Academy, Piers Locke’s Future Thriving looked like it would present some challenges to Shaw’s critique.

It seems to me that there is room for different takes on the optimism/realism axis here. For instance Simon Sharpe’s excellent Five Times Faster, while not shying away from the size of the task ahead on decarbonising, definitely has a feel-good quality to it. It is designed to wake us up to the possibilities offered to us by exponential technological change and social tipping points. By contrast, the Institute and Faculty of Actuaries’ Sustainability Group’s publication earlier this year, Climate Scorpion – the sting is in the tail, is all about waking people up to a higher level of climate risk than they may previously have been aware of. Meanwhile Sir David King, former UK Government Chief Scientific Adviser, is currently Chair of the Climate Crisis Advisory Group and founded the Centre for Climate Repair at the University of Cambridge. He set out his thoughts about where we are here.

So there are many shades of hope and despair on show here (I could obviously have mentioned many more that the few picked out here). What really matters is how fast and how radically we can act as a global species to the climate emergency. And the UK would make a good start if it stopped pretending that £22 billion is a lot of money for a developed country to find.