@eshton
Can't you just think of something worth crying for, for the sake of it?
Like the extinction of the tarpian, or the caspian tiger. Or, idk, the global loss of soil, or all the amazing people in the history of mankind who are almost forgot(I'm sure you know some in your field)... and then you can also stop crying 'cause we still have many species and we can save then, we still have soil and we can increase it, and those people are almost forgot, but not quite yet