"It is 2050. We have been successful at halving emissions every decade since 2020. We are heading for a world that will be no more than 1.5C warmer by 2100
In most places in the world, the air is moist and fresh, even in cities. It feels a lot like walking through a forest and very likely this is exactly what you are doing. The air is cleaner than it has been since before the Industrial Revolution. We have trees to thank for that. They are everywhere."