The importance of: energy returned on energy invested, or EROEI. This easy to read & not that long article by @richardheinberg on how Energy Resources & Climate Change are & will affect our future contains wisdom & insight that everyone should have access to. Highly Recommended. #FT http://www.postcarbon.org/blog-post/2362632-paul-krugman-s-errors-and-omissions Example: Most people have no idea about EROEI. I didn't until I read articles by Heinberg (an ecologist & author) & others involved in the #peakoil & climate change communities over the last decade or so. It's so fundamental a concept yet rarely discussed or factored in to articles & policies on climate & economics - especially overlooked by economists it seems! From the article: "... energy returned on energy invested, or EROEI. It takes energy to get energy, but historically fossil fuels delivered an immense profit on the meager investments of energy required to drill or mine f...