Australia leads the world's developed nations in carbon emissions per capita, and the island nation is not doing its part to prevent catastrophic global warming.
Like any science, the science of climate change is subject to uncertainties. A new proposed index offers policymakers a steadier number to pin their policies to.
As many as 65 percent of people in some countries haven't even heard of climate change, and perceptions of risk often depend on local temperatures as much as beliefs about humans' role in the changing environment, a new study finds.