This article in New Scientist is both disturbing and relieving at the same time. It is relieving in the sense that the US government has finally, under the burden of massive empirical evidence, capitulated that humans are causing the planet to heat up. If Australians could wake up finally and oust John Howard partially on […]
Dr David Evans: born-again ‘alarmist’?
A few weeks ago, self-proclaimed “rocket scientist”, Dr David Evans, wrote an Opinion Editorial in The Australian, which was widely circulated across various email distribution lists (I got send the link a couple of times, asking whether what he was saying was valid. I passed them on to these two pieces from Deltoid). But it […]
The arguments around carbon capture and storage (CCS) as a way of producing so-called ‘clean coal’ (low emissions baseload energy) have, to date, focused on its technical feasibility. I’ll talk more about that in another post. But first, let’s consider a more fundamental question. Just how much of the black stuff is there? Here is […]
DISCUSSION THREAD: Please post your questions or comments here. 8 August: Is the Earth really warming? “It’s so cold! How can the earth really be warming?” Statements such as these get in the way of climate action as they call into question whether there’s a problem to address. We might hear that surface temperature is […]
We’ve overshot the ‘safe’ level of atmospheric greenhouse gases are are going to be forced to look for ways to artificially cool the planet, or alternatively, to rapidly drawn down free-air CO2. Most geoengineering solutions look to do the former. For instance, the ‘simulated volcano’ (stratospheric sulphates) or ‘sunshade world’ (mirrors in space) are intended […]