Ebola now curable after trials of drugs in DRC, say scientists Chlamydia vaccine moves a step closer


It’s possible to perform orbital maneuvers which would normally require fuel using instead the momentum of sunlight. Via the incomparable Scott Manley: Lightsail 2 Sails On Sunlight At Last


I have long been skeptical about the prospects for off-world human colonies. Given that the International Space Station is the most expensive thing we have ever built and it is entirely reliant on supplies from Earth, it would be a gigantic leap just to make a self-sustaining closed life support system. Beyond that are many […]


Surprisingly, despite the importance placed on it in the University of Toronto fossil fuel divestment brief and in the divestment movement generally, I don’t have a post on the idea of the carbon bubble. If we start with the temperature targets countries have chosen as the upper limit for tolerable climate change, we can calculate […]


Andy Weir’s hard sci-fi novel The Martian has a protagonist whose sense of humour was part of why he was selected as part of a crew for a Mars mission: “They all showed signs of stress and moodiness. Mark was no exception, but the way he showed it was to crack more jokes and get […]


As noted here before, getting humanity off fossil fuels requires more than replacing our electricity generation and transport systems with climate-safe alternatives. We also need to decarbonize the process of producing food and raw materials. Since most fertilizer is made from natural gas, engineering plant-fungal symbiosis to fix atmospheric nitrogen could be a promising route […]

{ 1 comment }

Natural gas is often held up as a solution to climate change, or at least a transition in the right direction, on the basis of producing less CO2 per unit of energy than oil or coal. Other factors are also relevant, however. Natural gas is mostly methane (CH4) which is a much more powerful greenhouse […]


The CBC is reporting on polling results pertinent to this fall’s federal election: CBC News poll takes snapshot of Canadians ahead of fall election. They say the cost of living was the top concern identified, followed by climate change. This suggests a familiar Canadian dynamic: being notionally concerned about climate change, but rejecting action on […]


Over the years I have written a variety of academic papers on various aspects of nuclear weapons and nuclear power: 1) Written for an undergrad international relations course at UBC and subsequently published in a journal and given an award: “The Space Race as ‘Primitive’ Warfare.” UBC Journal of International Affairs. 2005. p. 19-28. 2) […]


Conservatives have no more reason to want to destabilize the climate than anyone else, though the political right has largely become where those who deny the existence of or need to do anything about climate change can persist unrebuked and win converts. A central view of mine these days is that it’s hopeless to pursue […]

{ 1 comment }