Hello! Wikipedia has a more in depth description but I’ll try and summarise it.
It’s coined by a lot of left-wing environmentalists but rather than focusing on climate pessimism it advocates for a technology focused approach to sustainable communities and mindful living that is in better sync with the planet.
You’ll find a lot of social activism attached to it as there is a focus on socialist values but it can certainly be adopted as a mindset by many people on the political spectrum.