Early in Leonardo DiCaprio’s Before the Flood, which aired Sunday night on the National Geographic Channel, we see a clip of DiCaprio speaking before the U.N. General Assembly, saying, “I stand before you not as an expert.” That’s the most credible line in the movie. And the least credible may be one that follows almost immediately: “I want to do everything I can to learn more about this issue.” If he’d really meant that, he might have gone to the trouble to speak to some of the … [Read more...]
A Call for Accurate Language about CO2 in the AGW Discussion
In an otherwise fine article at WattsUpwithThat.com, Ari Halperin writes: For some time, the subject [of the residence time of anthropogenic carbon dioxide in the atmosphere] was surrounded by confusion, created by sloppy definitions and evasive statements in IPCC assessment reports. There was a mix-up between the residence time of a CO2 molecule in the atmosphere and the rate of change of the surplus CO2 concentration. The residence time (~5 years) is of little interest, except as an … [Read more...]
