Good News on Global Warming
TheSync writes "OK, CO2 levels are rising, but iAfrica has a report that atmospheric methane concentrations are leveling off. Methane is the second most important greenhouse gas, accounting for one fifth of total warming. Researchers don't know why this is."
Well, I could point out the end-proterozoic super-glaciation, where Ice cover seems to have reached >90% of the planet several times, or the Late Cretaceous greenhouse, with sea levels ~200m higher than today's. Ice caps are quite unusual for the planet over geological time.