> I don't know enough about agriculture to understand what that means, but I have heard that the US uses a different, presumably lower, standard for organic cro

> I don't know enough about agriculture to understand what that means, but I have heard that the US uses a different, presumably lower, standard for organic crops than the EU does. It means exactly what you heard. The USDA Organic label doesn't mean that organic crops are sustainable. The organic label doesn't address problems associated with commercial agriculture: monocultures, wide-spread use of pesticides, fertilizer run-off into streams/rivers/ponds/lakes causing them to become hypoxic, destruction of wetlands to create arable land etc.