A few hundred people have marched in a peaceful demonstration for "climate justice" in Doha, where negotiators from nearly 200 countries are debating about how to slow the onset of global warming and help protect the most vulnerable countries from rising seas and other impacts of climate change.

Waving banners saying "Stop climate change" and "Arabs reduce emissions," the well-behaved crowd marched along the Qatari capital's Corniche, a waterfront walkway lined by gleaming skyscrapers.

One of the organizers noted that "it's not a protest, it's a march for peace."

The march was billed as the first environmental rally ever in the wealthy emirate, which is hosting the two-week U.N. talks aimed at forging a global deal to curb emissions of carbon dioxide and other heat-trapping gases.