We are just pressing against every part of the ecosystem and biodiversity in multiple ways now, because of the scale of economic activity.
Jeffrey Sachs, AGU14
I've just been watching
Jeffrey Sachs talking about global change from an economic, political and diplomatic viewpoint. His theme was scale. It's one of those lectures that helps you take a step back and see things in the wider perspective - and what is happening on the political and diplomatic stage.
[Here's the link to the HotWhopper guide to virtually attending AGU14. Once you have registered, logged in and gone to the video page, you can search for "Sachs" to see the video.
Tip: for some videos you'll get a screen that you have to buy a premier pass to see the video. Click through and you'll probably find, as I did, that the cost is $50 less $50 discount = $0 all up, relief, success - and then you'll get to the videos!]
Dr Sachs set the scene by talking about the explosions of growth around the world over recent decades - with population, technology, and information. He gave examples of the phenomenal growth in China and sub-Saharan Africa among other things. He also referred to warnings such as those described in
Limits to Growth
(link to Amazon), commissioned by the Club of Rome and published in 1972. He asked:
So, what to do about this? Oh my God. That's the problem. We really are the generation that reached the limits. We were warned about the limits two generations ago in 1972....