Damn You, John StosselAt Live Earth, Robert F. Kennedy Jr. and John Stossel continued their public feud over global warming. Ron Perelman and Gina Gershon are hanging out on Perelman’s yacht off the coast of Italy, but they may not be dating. Eliot Spitzer and Charles Schumer are weekend telephone buddies. Former Bronx congressman Mario Biaggi no longer holds a grudge against Rudy Giuliani, even though Giuliani successfully prosecuted him for bribery twenty years ago. Al D’Amato is happy he’s going to be a father again. Mel Gibson bought a $39.5 million estate in Greenwich, Connecticut. NBC accidentally featured Katie Couric in a Today-show promo. Hillary Clinton is hosting three Hamptons fund-raisers the first weekend of August.