In a more rational, moral, compassionate, scientifically literate world, this Cornwall declaration would not be needed. It assesses the “far-reaching, costly policies” that the world’s governments are adopting, supposedly to prevent global warming and climate change. It calls on governments to focus instead on protecting the poor, who desperately need the affordable energy that those policies circumscribe.
The doubtful claim that low density US cities impose a cost to the economy of $400 billion is countered by their being the most affluent in the world. Nine of the top 10 cities in GDP per capita are in the US and more than 70% of the top 50. The highest GDP per capita city in the world is one of the least compact, Hartford, with an urban population density among the bottom 10 out of more the than 900 urban areas larger than 500,000 (See here and here).