What we know today:

1)  "For most of the past 800,000 years, carbon dioxide levels had remained at between 180 and 300 parts per million (ppm) of air. Now they are at 380ppm.... In the past, it had taken 1,000 years for carbon dioxide to rise by 30ppm during natural warming periods. According to the new measurements, the same level of increase has occurred in just the last 17 years....It's an experiment we don't know the result of."

2) A process of worldwide global warming change has now begun, and projections of its course range from benign over the coming century to catastrophic in the next ten years.

What we strongly have reason to believe:

The principal cause of this warming is very probably the carbon dioxide generated by burning the fossil fuels on which the world depends for most of its energy.

What we don't know:

How significant an impact global warming will have on life, including human life, resulting from changes in precipitation, sea level, strength of storms, and transmission of diseases.

So. Things are getting warmer. (I  really like it.)  Industrialization is probably to blame.  But will warmer mean your country becomes a desert...or a rain forest?  A more wasted land or a greener, more agriculturally productive land?  (Some Chinese scientists believe China will get greener and significantly more productive agriculturally while the US will experience major drought.)  Will your coastal cities get submerged?  Will extreme weather become even more extreme and common?  Will world immigration pressure go manic as populations in growingly destitute areas flee towards the growing greener pastures?  Will tropical diseases like malaria and yellow fever range farther?  Migrating birds are likely to migrate much farther than before carrying diseases like H5N1 (bird flu) along with them.

"Oh mommy, look at that big strange bird in the sky.  I've never seen a bird like that before!"