The European Union is China鈥檚 biggest trading partner.
If the bloc goes belly-up, there goes the market for 20 percent of China鈥檚 exports 鈥 a tough blow for an economy still heavily reliant on its sales abroad. Plus, if the eurozone mess leads to a deep European recession or a systemic crisis, the whole world could follow Greece down the drain. China may be the global economy鈥檚 locomotive, but if all the wagons fell off the viaduct, they would pull the engine with them.