UNITED NATIONS (Reuters) - Former U.S. Vice President Al Gore bluntly told a U.N. conference on Monday that the planet would be better off if people cared more about global warming and less about O.J. Simpson and Paris Hilton.

Gore, the star of the Oscar-winning film "An Inconvenient Truth," joined the head of the United Nations and California Gov. Arnold Schwarzenegger to speak with one voice to urge quick global action to stem emissions that heat the Earth.

But it was Gore, who has become a guru for environmentalists, who stole the show as the United Nations turned its attention to the global ramifications of climate change and the need to curb greenhouse gas emissions.

UNITED NATIONS (Reuters) - The world's top leaders should meet every three months, starting next year, until a plan is drawn up to reduce emissions blamed for global warming, former U.S. Vice President Al Gore said on Monday.

Gore, who has made climate change his signature issue since leaving the White House, told a U.N. meeting that presidents and prime ministers should go to Bali this year for talks on a follow-up pact to the Kyoto Protocol, which runs out in 2012.

Traditionally, environment ministers or lower-level negotiators attend the annual UN climate change talks, but Gore said leaders should go from now on and then have follow-up meetings.

NEW YORK (Reuters) - A tropical cyclone could form in the southwestern Gulf of Mexico, while a couple of tropical depressions could form in the Atlantic over the next day or two, the U.S. National Hurricane Center said Monday.

The NHC will name the next three tropical storms Karen, Lorenzo and Melissa. A tropical storm has winds of 39 to 73 mph.

In the Gulf of Mexico, three out of four weather models predict the system will steer clear of the U.S. oil and gas producing and refining facilities in the northern Gulf and make landfall in central Mexico in a few days.