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.
Red wine vinegar is essentially a fermentation product of red wine, you can safely substitute red wine for certain recipes that demand red wine vinegar. The acidic properties of red wine vinegar are due to the work of bacteria called acitobacter, during the process of fermentation. Red wine can be substituted for vinaigrette and marinade recipes.