The green skinned grapes of the Sauvignon Blanc varietal had their origins in Southern France, where they are still widely grown and used for many of the excellent young and aged white wines the region is famous for. Today, however, they are grown in almost every wine producing country in the world, and are widely revered for their fresh and grassy flavors, full of tropical notes and refreshing, zesty character. Sauvignon Blanc grapes thrive best in moderate climates, and ripen relatively early in the year. This has made them a favorite for many wineries in the New World, where they can still produce healthy and high yields in the earlier part of the summer before the temperatures become too hot. Too much heat has a massively adverse effect on Sauvignon Blanc, as the grapes become dull in their flavor, and the wine produced from them loses all its unique character and high points. As such, Sauvignon Blanc farmers have had a lot of trouble from global warming and climate change, as they are being forced to harvest their crops increasingly earlier in the year when it is cool enough to do so. Ever since the Phoenicians and Romans brought their knowledge of vine cultivation to Spanish soils, the country's culture has grown alongside wine production, with wine being a vital part of Spanish identity and Spanish traditions. Each region of Spain has a wine quite distinct from the others, and it is produced by smallholders and families as much as it is by large companies and established wineries. From the relatively mild and lush regions of La Rioja to the arid plateaus that surround Madrid, grapes are grown in abundance for the now booming Spanish wine industry, and new laws and regulations have recently been put in place to keep the country's standards high. By combining traditional practices with modern technology, Spanish wineries are continuing to produce distinctive wines of great character, flavor and aroma, with the focus shifting in recent decades to quality over quantity.