CANBERRA, Nov. 15 (Xinhua) -- Tens of thousands of Australians gathered in Sydney's center on Saturday to urge the government to adopt a quick response to the climate crisis.

    A colorful crowd showed up in Martin Place in downtown to support the Nature Conservation Council of New South Wales' Fourth Walk Against Warming march.

    Some were dressed as polar bears. Others wore windmills on their backs. Others carried placards of penguins with messages that read: "Don't build your home on my home", and "Some like it hot, penguins not", a report from Australian Associated Press said.

    Before the walk, Nature Conservation Council's Cate Faehrmann told the crowd the government needed to reduce greenhouse pollution "to the levels that science is telling us is necessary for a safe climate, not just to the level the fossil fuels industry can live with".

    After speeches were given the crowd marched to Hyde Park where walkers were treated to entertainment.