What's Really Warming the World?

Cool visualization. It's worth keeping in mind that the modeled data lines up with reality because it's supposed to. That's how you calibrate your model, by making sure it fits reality. The real trick is to see how well your model extrapolates from the data you have out into the future. As in, if you feed it data up to, say, 1990, will it correctly spit out 2015 temperatures that fit the reality of 2015, or will it spit out…

For a more rigorous, scientific and yet still thoroughly digestible talk I strongly recommend watching Dr. Richard Alley's talk "The Biggest Control Knob: Carbon Dioxide in Earth's Climate History" [0] As a Bayesian I particularly enjoy Alley's running theme that: while there certainly could be alternative explanations for what is happening, we simply cannot find anything that explains the data better than CO2. I see many skeptics pointing out tiny holes in the main AGW hypotheses, but the real Bayesian…

The planet is being warmed by rage of people seeing an unlabeled or improperly labelled Y axis on a graph. This article alone cost us this winter's snow. Edit: Oh! It's apparently labelled correctly... >The colored temperature lines are the modeled estimates that each climate factor contributes to the overall temperature. Yeah, nah. I'd prefer hard data, not some unverifiable models.

This has previously been discussed at https://news.ycombinator.com/item?id=13738405 (Feb 2017, 212 comments) and https://news.ycombinator.com/item?id=9771493 (June 2015, 531 comments) but I think it's a really impressive visualisation that a lot of people probably haven't seen yet.