As the birds sing outside my door (I am next to a woodland) I cannot but recall how loud their songs were because there were so many more of them in past years.
It is a shameful side of humanity that after billions of years of evolution and several mass extinction events we inherited 200,000 years ago an abundant and reasonably healthy biosphere and in the past ten thousand years of building we have brought it to near extinction and we will go on until we have eradicated everything we need to survive. While pretending the money to made from putting it all right will be productive and plentiful.
In my youth the bird song was glorious, not it is a dirge for us all so mournful it hurts.