So why, asks Barney Pell, does it force us to communicate like cavemen?

FORBES: Magazine Article

It is an appropriate conclusion to a book that asks us to question our decisions by thinking ahead and, more importantly, outside of ourselves.

FORBES: Book Review: How Will You Measure Your Life?

The other aspect of the US position that has drawn cries of "hypocrite" from the environmental community is that it asks the EU to stand down its ETS plan and instead develop a truly global measure to tackle aviation emissions.

BBC: US and its airlines: Too much hot air?