Dennis Prager offers a fascinating contrast between conservatives and liberals on what exercises them most: Islamic fascism or global warming. It's worth reading. Prager offers the following concluding paragraph (but don't miss the intervening argumentation!):
One day, our grandchildren may ask us what we did when Islamic fascism threatened the free world. Some of us will say we were preoccupied with fighting that threat wherever possible; others will be able to say they fought carbon dioxide emissions. One of us will look bad.