Recently in The Wall Street Journal, Princeton physics professor William Happer noted how the increase in atmospheric carbon dioxide (CO) has not produced the rapid temperature increase predicted by the International Panel on Climate Change (IPCC). Using Roy Spencer’s satellite data—which has been publicly available since 1979—Happer shows how, instead of rising by 3°C as predicted by the IPCC, global temperatures have risen by less than half of that amount.
This week’s charticle is a depiction of these famous data. While there are obviously some dramatic swings in temperature over the past 34 years—such as the cooling after the Mt. Pinatubo eruption in the early 1990s and the El Niño warming of 1998—the overall trend shows only a slight increase in global surface temperatures.