As negotiations at the Paris climate change conference draw to a close, one environmental campaigner says any resolutions are unlikely to make much of a difference.
Danish author and environmental activist Bjorn Lomborg told SBS the Paris agreement was likely to be extremely expensive and achieve very little in reducing carbon emissions.
"It will solve about one per cent of the global warming problem," he said.
"The only real way to solve global warming is to make green energy so cheap everyone wants it.
"If we want the world to switch we need to dramatically increase investment in research and develoment of green energy."