Seriously? Did you not see Canada, Argentina, New Zealand, Australia. For me it was relatively balanced and mainly the US really throws it off. There are also some red countries that I would seriously not want to live in.
The only context where Argentina can be in the same sentence as Australia is in a list of countries in the Southern Hemisphere, or countries whose names start with an 'A'.
Edit: although it looks like a way to be a green developed country by this ranking is largely to have extremely uneven population density.