What's the intent with this series? Initially, it seemed like it was designed mainly as a cautionary tale of what could happen in coming years if governments and mega-corporations continue doing what they're doing now, as the average planetary temperature continues to rise, causing all sorts of environmental havoc.
But at some point, this series morphs into just another sci-fi anthology, with very loose ties between episodes, and only a tangential link to the topic of climate change.
As the 'cautionary tale', the show was rather preachy, even for someone who is on board with the idea of a global crisis. And as the more standard sci-fi, there's nothing we haven't seen before -- and executed with far more panache, as in series like Black Mirror.
Some very big name actors have joined this project, but even they can't save what is, in total, a rather mediocre mini-series.
Not terrible, but not nearly as good (nor as powerful) as one might have hoped.