TOKYO — Mariko Watanabe admits she could have chosen a better time to take up baking. This week, when the Tokyo housewife visited her local Ito-Yokado supermarket to buy butter to make a cake, she found the shelves bare. ‘I went to another supermarket, and then another, and there was no butter at those either. Everywhere I went there were notices saying Japan has run out of butter. I couldn’t believe it - this is the first time in my life I’ve wanted to try baking cakes and I can’t get any butter,’ said the frustrated cook. Japan’s acute butter shortage, which has confounded bakeries, restaurants and now families across the country, is the latest unforeseen result of the global agricultural commodities crisis. A sharp increase in the cost of imported cattle feed and a decline in milk imports, both of which are typically provided in large part by Australia, have prevented dairy farmers from keeping pace with demand. While soaring food prices have triggered rioting among the starving millions of the third world, in wealthy Japan they have forced a pampered population to contemplate the shocking possibility of a long-term - perhaps permanent - reduction […]