A pair of beach sandals with green moss are symbolically placed on the Place de la Republique, after the cancellation of a planned climate march following shootings in the French capital, ahead of the World Climate Change Conference 2015 (COP21), in Paris, France. Reuters/Eric Gaillard
A woman with a polar bear hat participates in a human chain to show solidarity for climate change after the cancellation of a planned climate march following shootings in the French capital, ahead of the COP21, in Paris. Reuters/Benoit Tessier
Protesters take part in a rally held a day before the start of the 2015 Paris COP21, on Parliament Hill in Ottawa, Canada. Reuters/Chris Wattie
People take part in a protest about climate change around New York City Hall at lower Manhattan, New York a day before COP21. Reuters/Eduardo Munoz
A protester dressed in police uniform takes part in a protest about climate change around New York City Hall at lower Manhattan, New York. Reuters/Eduardo Munoz
Protesters dressed as Santa Claus take part in a protest about climate change at New York City Hall steps in lower Manhattan. Reuters/Eduardo Munoz
Activists wearing gas mask replicas hold placards during in a rally held the day before the start of the Paris COP21, in La Paz, Bolivia. The placard reads, "If you want to keep living, your surroundings have to continue to exist". Reuters/David Mercado
A man rides his bicycle while carrying an Alebrije as he takes part in a rally held the day before the start of COP21, in Mexico City, Mexico. Reuters/Daniel Becerril
An activist who holds a big replica of a coca leaf leads a rally held a day before the start of the Paris Climate Change Conference (COP21), in La Paz, Bolivia. The signs (in red) reads, "not cutting down more trees". Reuters/David Mercado
Indigenous children depict fish in the sea during a rally in Sao Paulo, Brazil. Reuters/Nacho Doce
A Greenpeace activist dressed as a bear holds up a banner during a rally held before the start of the Paris COP21, in Mexico City, Mexico. The banner reads, "Climate Change". Reuters/Daniel Becerril
Protesters lie next to signs reading "I am the Doce river" during a rally held before the start of the Paris Climate Change Conference (COP21), in Rio de Janeiro, Brazil. Reuters/Pilar Olivares
Protesters shout slogans carrying a sign during a rally in Rio de Janeiro, Brazil. The sign reads, "Zero Deforestation." Reuters/Pilar Olivares
An environmentalist reacts in front of French CRS police near the Place de la Republique after the cancellation of a planned climate march following shootings in the French capital, ahead of the World Climate Change Conference 2015 (COP21), in Paris, France. Reuters/Benoit Tessier
A protester holds up a placard as he demonstrates during a rally in Madrid, Spain. The placard reads: "The thermometer of the life, No more CO2" . Reuters/Andrea Comas
Protesters throw up a globe-shaped balloon during a rally held the day before the start of the 2015 Paris World Climate Change Conference in Rome, Italy. Reuters/Alessandro Bianchi
Protesters demonstrate during a rally held the day before the start of the Paris Climate Change Summit, in London, Britain. Reuters/Suzanne Plunkett
Demonstrators clash with CRS riot policemen near the Place de la Republique after the cancellation of a planned climate march following shootings in the French capital, ahead of the World Climate Change Conference 2015 (COP21), in Paris, France. Reuters/Eric Gaillard
Pairs of shoes are symbolically placed on the Place de la Republique, after the cancellation of a planned climate march following shootings in in Paris. Reuters/Eric Gaillard
Environmental activists take part in a symbolic human chain gathering in Marseille, France. Reuters/Jean-Paul Pelissier
Environmental activists participate in a human chain to show solidarity for climate change after the cancellation of a planned climate march following shootings in the French capital. Reuters/Benoit Tessier
People form a human chain to show solidarity for climate change in Paris. The slogans read "We participate in the beauty of the world but climate warming threatens us". Reuters/Benoit Tessier