Do I sense a crack in the consensus wall?

New NASA model: Doubled CO₂ means just 1.64°C warming

'Important to get these things right', says scientist

A group of top NASA boffins says that current climate models predicting global warming are far too gloomy, and have failed to properly account for an important cooling factor which will come into play as CO₂ levels rise.

According to Lahouari Bounoua of NASA's Goddard Space Flight Center, and other scientists from NASA and the US National Oceanic and Atmospheric Administration (NOAA), existing models fail to accurately include the effects of rising CO₂ levels on green plants. As green plants breathe in CO₂ in the process of photosynthesis – they also release oxygen, the only reason that there is any in the air for us to breathe – more carbon dioxide has important effects on them.