I have to say it's a little unsettling after reading about Dabbawala, then reading about Pirates, one of which died of Dropsy; and knowing about the links between global warming and the marked decline in pirates.
Even worse, on in the background is The Planet. It's covering climate change and all of that jazz - but it's not just all of that jazz.
To give you the gist:
It's not that hard to understand. The economy is a system. The biosphere is a system. Economic growth is the main deal that society is focused on. Economic growth typically means more people. More people need more things. More things consume more materials. Where do the materials come from? The biosphere. The economy derives huge amounts of raw material - food, crops, wood - from the biosphere, turns it into junk for 20 years and then gets it thrown back into the biosphere.
It's really just a question of how much we can take and throw back before the biosphere becomes fed up; and we start to experience Uneconomic growth - where it costs far too much to get too little.