Gideon Rachman, purveyor of doom at the Financial Times

How the bottom fell out of ‘old’ Davos - on the waning influence of the US and 'Old' Europe in a world of high rising East Asian countries.

When nations turn into hoarders - how much the world population growth depends on food supplies, and how much the latter depend on fossil oil energy

Why America and China will clash - about what's behind Google's recent decision to stand up to the Chinese government's tendency to suppress Internet access

America is losing the free world - how Barack Obama was turned down by high officials of brasil, India, South Africa and Turkey at the Copenhagen Climate summit. He writes: "...Revealingly, both Brazilian and Chinese leaders have made the same pointed joke – likening the US to a rich man who, after gorging himself at a banquet, then invites the neighbours in for coffee and asks them to split the bill."

More of his Financial Times columns here. Rachman also has an excellent blog.