Then let them explain how it is possible for the oceans to rise enough to completely cover NYC. Is there enough ice to melt to cover our planet (surface 75% water) with enough water to make the sky scrapers into underwater reefs? Gore said it, his krazy kids repeat it, let them explain it.
Liberals would continue to call AGW skeptics deniers if advancing glaciers were scraping them off the southern end of Manhattan Island.
If all ice on the planet melted, which it won’t, sea level would rise about 215 feet.
Which would turn most NYC skyscrapers into islands.
http://www.usatoday.com/weather/resources/askjack/2004-11-21-melting-polar-ice_x.htm
Would also do a dandy job on most of Florida. Large chunks of the rest of the country, too.