Regional effects of global warming vary in nature. Some are the result of a generalised global change, such as rising temperature, resulting in local effects, such as melting ice. In other cases, a change may be related to a change in a particular ocean current or weather system.
In general, white wines exhibit more acidity than red wines. Acidity gives wine its crispness on the palate. A dry wine needs good levels of acid to provide liveliness and balance; sweet wine needs acidity so it does not seem cloying. Too much acidity will make the wine seem harsh or bitter; too little and the wine will seem flabby and dull.
Wine Sweetness. The tip and top of your tongue are the areas that detect sweetness. One key aspect in the taste of different wines is the degree of sweetness or dryness. Simply put, a dry wine is a wine that is not sweet. Similar to tea or coffee with no added sweetener, dry wines have little or no natural sugar remaining after the fermentation process.