> A former head of Australia’s National Climate Centre is arguing that the Intergovernmental Panel on Climate Change (IPCC) has adopted an overly simplistic approach to global warming and has ended up exaggerating the human contribution to recent climate change. > William Kininmonth argues that the warming of the planet is fastest in winter and in high latitudes near the poles. He argues that this is mostly due to increased heat transport from the tropical oceans. > However, the recent warming of the tropical oceans can’t be explained by the greenhouse effect due to carbon dioxide, because that effect is small in the humid tropical atmosphere. The most probable explanation is natural changes in ocean currents. More at the linked article.