The climate
will change.
Climate Definition: the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year,
averaged over a series of years.
For example, Lake Winnipesaukee is a Glacial Lake -- carved during the last ice age
which peaked about 20,000 years ago, and ended about 11,000 years ago. The deepest "recent" ice age occured 650,000 years ago, lasted 50,000 years, and dropped the global temperatures by 9 degrees and the oceans by 400 feet. Since then, ices ages have occured every 100,000 years, followed by significant warming periods.
Scientists don't really understand the conditions which cause such temperature swings. But one thing's for sure -- no ice age, or corresponding warm up, has ever been caused by man's activities.
So, we may be experiencing a climate change as we speak. But whatever it is, it isn't caused by man, and won't be stopped by mankind. I, for one, am going to sit back and enjoy the warmer temperatures.