Once grown only in Bordeaux, Cabernet Sauvignon has spread internationally to become the world's most important black winegrape. The Bordeaux blend of Cabernet Sauvignon with Merlot and other varieties has become universal, but is also challenged by varietal wines from the New World consisting exclusively of Cabernet Sauvignon. What is the true character of Cabernet Sauvignon? Going behind the scenes, this worldwide survey liberally illustrated with maps and photographs examines the changing nature of Cabernet Sauvignon and its blends: how has Cabernet changed from a herbaceous to a fruit-driven wine? Should Cabernet Sauvignon be drinkable on release or require ageing? And does Cabernet Sauvignon still need to be blended in the era of global warming? How do the top wines of Napa Valley differ from the First Growths of Bordeaux? Has Bordeaux lost its way in adopting a riper international style? How do its wines compare with Bordeaux blends from Coonawarra or Margaret River? Will global warming eliminate Merlot as a partner for Cabernet Sauvignon? What is the future for blends with Carmenere or Malbec in South America or with Syrah in Australia? Is Bordeaux still the essential reference point or has it been displaced by newer regions? Reviewing Cabernets from all over the world, Claret & Cabs includes profiles of leading producers with tasting notes from current and past vintages, and vintage assessments.