“There is no planet B” was the rallying cry in Copenhagen as tens of thousands of climate activists marched through the Danish capital to call for radical action to fight global warming worldwide.Danish supermodel Helena Christensen was among those seeking to turn the heat on negotiators ahead of next week’s summit meeting of world leaders. “It’s time to slowly but surely move towards something that changes our lives, our daily lives and that collectively will change and have a huge effect on global level,” she said. Many fear that the negotiations will stall when it comes to making pledges that require financial commitment from the world’s wealthier nations. “I’m here to demand that we change the whole financial system to deal with the climate problems. Small change is not enough, we have to change the system and the economy,” said one demonstrator. World leaders will join the conference on Thursday in a bid to thrash out outstanding issues – notably funding to help developing countries advance while respecting the environment. “There’s a multi-coloured alliance gathered here in Copenhagen, it’s a family atmosphere, there are lots of pushchairs, bikes, families, but also lot of people who are critical of capitalism, lots of non-governmental organisations and political parties,” said euronews reporter Johannes Bahrke. Some 4000 events across the world have been organised over the weekend in support of a strong, legally binding agreement emerging from the conference.