What does the alpha source for “Hothouse Earth” actually tell us?

Hothouse

A paper has appeared in PNAS (Proceedings of the National Academy of Science) that is attracting a lot of media attention. Titled “Trajectories of the Earth System in the Anthropocene” it lays out a possibility that we face a runaway climate hothouse. Note the word I’ve underlined. Many of the media stories highly overhype it … Read more

EPA vs California – The showdown looms ever closer

emissions

It has been on the radar for some time now, and as recently as last week I was giving a heads up that this was coming. The EPA has now finally announced that they are rolling back the existing emissions regulations. It’s a proposal, and not a done deal. Notice of Proposed Rulemaking The formal … Read more

Can we attribute the heatwave to Climate Change?

heatwave

Weather and climate are not the same thing. We can and do have weather events that that are extreme. Often such events are attributed to climate, but the subject matter experts generally tend to pause and not make that leap.What about the current heatwave, is that an extreme weather event, or can we attribute an … Read more

EPA to attack California’s Auto emissions standards

emissions

Despite a change in leadership at the top of the EPA the fight to rollback Californian auto emissions is still game-on. Bloomberg reports on 23rd July … Trump to Seek Repeal of California’s Smog-Fighting Power … As part of the effort, the U.S. Environmental Protection Agency will propose revoking the Clean Air Act waiver granted … Read more

‘Powerful evidence’ of global warming’s effect on seasons found in troposphere

evidence of seasonal trends

How do we know that humans are responsible for Global warming, or that there is in fact any Global warming at all, what evidence do we have? There are in fact several lines of evidence. We know that certain gases such as CO2 are greenhouse gases. This is been an established fact for rather a … Read more